As my name says . . . The Polynesian is our favorite. Love coming back to the relaxed feel after a busy day at the parks and we love seeing the Castle and EWP at night. Loved it as a kid and now love it with my kids and DH.
Ok this is easy....uh well maybe not.
I believe that the AKL is the nicest of all but the least convenient for getting around (you are far from everything except AK. The contemporary is the most convenient for travel. The compromise is the Poly, it is beatiful with a hint of seclusion while still fairly easy for travel. If you are taking kids I suggest AKL or POLY. If it is just adults try CR or GF. Those by my standard are the four best. But this is just one Disney fanatics opinion!!!