The only one I've stayed at is the Frontier Tower. I've seen many people advise against that tower because it's the farthest from the parks, and if walking distance is the absolute most important thing to you then that's a valid point. But honestly, I really liked that tower. The difference in walking distance is negligible (it's just a matter of walking past the pool). The tower was so quiet. This was a busy event weekend and the hotel was fully booked, and yet there were many times when it felt like we were the only ones in the hotel. There's very little foot traffic nearby and the elevators and lobby were often empty. Some people also say they prefer the Fantasy tower because they like having a full lobby attached (that's the tower that has the front desk, check-in, valet, gift shop, etc.). But again, this is a matter of personal preference, because I found that having a calm and quiet lobby was really nice after a hectic park day and made returning to the room a more relaxing transition.