I have owned about half a dozen AES but currently only own the MVS Dedicated cab
I have 30 games so far, but going for a full euro set - At first I didn't like the Neo Geo games because I didn't get to play them on the actual console until around 2000/1 but now I really love them. Games like Burning Fight, Fatal Fury, Art Of Fighting (Yeah all the early ones) I love.
I do like some of the newer titles like SVC Chaos, Shock Troopers 2 & Blazing Star also.
Owning the AES is amazing though, even though I own the arcade machine I would also be tempted to buy another