Final Fantasy VII is overrated.
Naughty Dog hasn't made a good game since the original Jak & Daxter.
Guild Wars had the best gameplay of any MMO ever. The sequel was awful and a shameless uninspired cash-in.
Most of the N64 games were not that great, people are blinded by a lot of nostalgia. Obviously there were some gems but by and large it's an overrated console.
Halo 3 had the most fair and well-balanced multiplayer of any game ever.
Metroid Prime is a top-10 game ever made.
If someone says Diamond & Pearl were better than Black & White I know I can immediately dismiss their opinion forever.
Black Flag is the best Assassin's Creed by a pretty big margin.
The world needs more games like Monster Hunter.
Smash Bros 4 terribly under delivered, it was a lazy copy/paste of Brawl with extra charters that took 7 years to make.
Wii had a fantastic library of hidden gems, if you put the work in there's tons of unique games that are a lot of fun to play.
I'll buy anything Firaxis puts out at this point.
I appreciate their effort and creativity and want them to do well, but indy games are by and large are just not worth the time or money.