Final Fantasy 7. I still can't really see what all the fuss is about, really. Final Fantasy 6 had better characters, better music, and better graphics (IMO, of course. It helps that FF6 was on the SNES with beautiful sprite-based graphics, that still look good today, while FF7 was on the Playstation when 3D gaming was arguably still in its infancy and, as such, has aged very poorly). As a side note, Final Fantasy games I *do* like: 4, 6 & 10 (I intend to play 8 and 9 one day, and possibly add to that list)
Both CoD4 and MW2 were kinda meh for me, the Halo series, too.