Hmmm, I haven't thought of my top 5 yet.
My top 3 though are:
1.Final Fantasy VII
2.Metal Gear Solid
3.Resident Evil 3
Honourable mentions that I still need to rank in order are Sonic Adventure 1/2, Resident Evil 2/4, Final Fantasy X/XIII, Metal Gear Solid 3, Tales of Vesperia, Call of Duty 4, NiGHTS into dreams and Grand Theft Auto: San Andreas.