I usually fly United but have experienced delays, canceled flights, being bounced from seat/overbooked flights, not being able to sit with the other member of my flying party, disallowed carry on, and space between seats far too small (I am 5'2, 105lbs so if its too tight for me, it's just too tight!!). I stayed flying United because I was earning points with their credit card. However the last 4 times I have flown with American and had such a completely different experience! Everything was so smooth from beginning to end. The planes were large with enough room between seats and the wifi actually worked! I've been so happy with American I am now signing up for the 60K award program with the CC American offers and leaving United. You earned my business all the way around from reserving a ticket to arriving at my destination.