May as well write my top 3:-
1)[b/]FFVII[/b] - still the only game to turn around my entire view on a genre, I still play it every so often and still absolutely love it. One of the very few RPGs I can play more than once and still enjoy it.
2)[b/]Valkyria Chronicles[/b] - hadnt heard of the game picked it up on a whim for a bargain price and was blown away, im not (and am still not) a strategy game player but this game greatly impressed me and is the only game that has almost made me cry (because I was sad not because I was seething with rage or it wiped 60 hours of game time by corrupting all my saves).
3)[b/]Xenoblade Chronicles[/b] - another game I heard little about until it was about a week to being released, I actually bought it on the strength of a few japanese you tube videos I saw expecting an average but enjoyable JRPG. But it totally exceeded my expectations in everyway I even took time out from the excellent Persona 4 to concentrate on this fully until it was finished I look forward to my next playthrough in a few months.
Honourable mentions:-
SF2 turbo
Mario 3
Persona 4
There have been loads of other top class games as well but these are the ones that stand out.