My list is Based on airlines I've flown:
1.Cathay Pacifc
2.British Airways
3.Austrian Airlines
4.Swiss Air
5.Air France (I flew before the merger)
6.KLM(flew after the merger)
7.Lufthansa
8.Philippine Airlines
9.Cebu Pacific
10.Air China (I thought it was a Dragon air flight, the ticket showed AK but then i leaned that it was a codeshare)
Well these is a list of some of the flights that i managed somehow to enjoy.
Im actually confused to think which is worst Alitalia or American Airlines.
Other Airlines that are worthy to be put in the list, but i've not flown with them yet, but im planing are Singapore Airlines,Qantas,Dragon Air,Malaysia Airlines, Emirates,Qatar,Continental,Asiana,ANA,JAL,THai Airways,Air Mauritius.