I have just arrived at Seoul Incheon Airport. Our hotel is in Central Seoul(e.g. Itaewon, Jongno, Myeongdong… basically north side of the city). The current problem is: How do we get to the hotel? There are four members(two boys and two girls). Girls are traveling with larger suitcases than boys.

Grok 4.1 Fast

Vote: Airport limousine bus

Airport limousine buses are the optimal choice for a group of four with luggage from Incheon to central Seoul. They offer direct routes to key areas like Myeongdong, Itaewon, and Jongno, with ample luggage storage, air-conditioned comfort, and frequent departures. Compared to A (metro only), which involves multiple transfers, stairs, and crowded trains—tough with large suitcases. B (AREX + metro) improves speed but still requires lugging bags onto metro lines. D (taxi) is convenient but costly (80,000-120,000 KRW for a van taxi) and risks traffic delays. Buses cost ~15,000 KRW/person, totaling ~60,000 KRW—cheaper and hassle-free. No need for E; C perfectly balances cost, convenience, and luggage handling.

GPT-5.4

Vote: Airport limousine bus

Airport limousine bus is the best balance of comfort, simplicity, and cost for a group of four with large luggage. Metro-only options require multiple transfers, stairs, platform walking, and crowded trains. That is the worst experience when two travelers have big suitcases. AREX plus metro is faster than bus in some cases, but it still ends with the same luggage problem inside the Seoul subway network. The final transfer is the painful part. A taxi is the most door-to-door option, but from Incheon to central Seoul it is usually much more expensive, and you may need a larger vehicle depending on the total luggage. Traffic can also make the fare feel worse. The airport limousine bus is designed for exactly this situation: airport travelers, baggage storage, direct routes to major central Seoul districts, and fewer transfers. Even if it is not perfectly door-to-door, it usually gets you close enough with far less hassle. For Itaewon, Jongno, or Myeongdong-area hotels, the bus is often the most practical choice unless your hotel is extremely hard to reach from the nearest stop.

Kimi K2.5

Vote: Airport limousine bus

The airport limousine bus is the optimal balance of cost, convenience, and comfort for four travelers with heavy luggage. These buses run direct routes to major downtown districts including Myeongdong, Jongno, and Itaewon with luggage stored in the cargo hold, eliminating the need to haul large suitcases through crowded metro stations with stairs and escalators. For a group of four, the total cost (approximately 68,000 KRW) is significantly cheaper than a jumbo taxi (100,000+ KRW) while providing nearly door-to-door service to hotel districts. Unlike the AREX+metro option (B), you avoid the difficult transfer at Seoul Station with large bags. While a taxi offers maximum privacy, the bus provides comfortable seating, predictable travel times via dedicated bus lanes, and avoids traffic cost uncertainty. Given that two travelers have larger suitcases, minimizing transfers and stair navigation is essential for a stress-free arrival.

Claude Opus 4.6

Vote: Airport limousine bus

The airport limousine bus is the best option for this group of four with large luggage. Here's why: **Luggage convenience:** The girls have large suitcases, and navigating the Seoul metro system with bulky luggage is a nightmare — escalators, stairs, crowded platforms, and transfers make it extremely uncomfortable. The limousine bus has dedicated luggage compartments underneath, so you can stow everything easily. **Direct routes to central Seoul:** Airport limousine buses run dedicated routes to major hotel districts including Myeongdong, Jongno, and Itaewon. Many stop right at or near major hotels, minimizing the last-mile problem. **Cost-effective for four people:** At roughly ₩17,000 per person, the total for four is about ₩68,000. A taxi would cost ₩65,000–₩100,000+ depending on traffic and tolls, so the bus is comparable or cheaper. Meanwhile, AREX + metro (Option B) would be cheaper per person but still requires dragging luggage through transfers at Seoul Station or other hubs. **Comfort:** After a flight, the limousine bus offers comfortable seating, air conditioning, and a stress-free ride. No need to figure out metro transfers or wrestle suitcases through turnstiles. **Why not the other options?** Option A (metro only) is the worst for luggage — the all-stop line from Incheon is very long. Option B (AREX + metro) still requires a transfer with heavy bags. Option D (taxi) is significantly more expensive and doesn't offer proportionally better convenience since the bus goes nearly door-to-door for central Seoul hotels. The limousine bus strikes the perfect balance of comfort, convenience, and cost for a group of four with large luggage.

DeepSeek V3.2

Vote: Airport limousine bus

The airport limousine bus is ideal for a group of four with large luggage. It provides direct, non-stop service from Incheon Airport to central Seoul hotels, eliminating the need for transfers and reducing stress. Buses have ample luggage space and compartments, easily accommodating the girls' larger suitcases without the physical strain of carrying them on metros. This is more comfortable than metro options, which involve navigating crowded stations and trains. Cost-wise, it is significantly cheaper than a taxi for four people, while offering comparable convenience. Taxis are expensive for the long distance to central Seoul, and metro transfers (options A and B) are impractical with bulky luggage.

Gemini 3.1 Pro

Vote: Airport limousine bus

For a group of four people carrying large suitcases, the Airport Limousine Bus is overwhelmingly the best option for traveling to Central Seoul. First, a standard Korean taxi (Option D) will almost certainly not work. Standard taxis often have LPG tanks in the trunk, significantly reducing luggage capacity. They cannot fit four passengers plus two large and two regular suitcases. You would be forced to hire a Jumbo Taxi or two regular taxis, which becomes very expensive. Second, taking the Metro (Option A) or AREX + Metro (Option B) requires transferring at massive, crowded hubs like Seoul Station. Navigating these stations with large luggage involves long walks, escalators, and sometimes stairs, which is exhausting after a flight and highly inconvenient during busy hours. The Airport Limousine Bus (Option C) perfectly solves these issues. The buses have dedicated, spacious luggage compartments underneath, meaning you don't have to wrestle with your bags. Furthermore, the buses run direct routes that stop right in front of or very close to major hotels in areas like Myeongdong, Jongno, and Itaewon. It offers the most comfortable, cost-effective, and hassle-free door-to-door experience for a group with heavy luggage.

Final Summary

The AI Roundtable achieved a rare moment of total harmony, with all six models immediately identifying the airport limousine bus as the superior choice for a group of four. Claude Opus 4.6 and GPT-5.4 led the charge by highlighting the 'nightmare' of navigating Seoul's metro stairs with heavy luggage, while Gemini 3.1 Pro provided the final blow to the taxi option by pointing out the logistical impossibility of fitting four travelers and their suitcases into standard Korean taxi trunks. The models collectively concluded that the bus offers a civilized, cost-effective middle ground between the physical labor of the subway and the excessive expense of a jumbo taxi.

All 6 models agreed on "Airport limousine bus" after discussion

Strongest Arguments

• Airport limousine bus: Gemini 3.1 Pro noted that standard Korean taxis often have LPG tanks in the trunk, significantly reducing space; therefore, a group of four with four suitcases would be physically unable to fit in a standard taxi, making the limousine bus the only practical direct-transport option.