For me it would be Unlimited SaGa. Probably one of my favorite jRPGS. I Love the challenge and the amount of strategical thought that goes into everything in this game.

What about you? I've never met anyone else who liked Unlimited SaGa, post your games and see if you can find others who enjoy them as well.

Bionic Commando and Wolfenstein, i love those games, Eat Lead too

This is quite old skool of me, but I really liked Legend Of Gia for the SNES. Great game.
It never go good reviews and hardly anyone knew about it though.

X-men Origins Wolverine
Terminator Salvation
Dark Sector

Star Wars: The Force Unleashed. I think it's gotten pretty bad reviews, I love that game!

Depends on the genre

ARPG- Sacred 2. This game kept me occupied for days even though the scores were mediocre at best for the consoles. I felt like if it was named Diablo 2.5, it would be an easy B + on everyones radar.

Action - Prototype - This I felt suffered from the Assasin's Creed fate, i.e. people voting it down to be contrary.

Armored Core - This series gets absolutely wrecked by reviewers.

Dynasty Warriors- I enjoy these games. Apparently they give IGN reviewers strokes.

Fighting - Every Mortal Kombat game to hit the Genesis past 1 was always rated at least 1-2 grade points behind the SNES version. It really was not a fair comparison, either.

Afro Samurai - Game was fun. Sort of a hip Ninja Gaiden. Again, don't really see all the hate.

RPG - The last Remnant. The game was insanely fun. I felt like the bugs were less and less noticable the more I played.

My issue today with reviewers is I feel like they allow themselves to be sucked into the hype of video games. While the Gears of Wars, Halo, Zelda, and Metal Gear's of the world are quality games, I feel like tomorrow Epic could toss a GoW game out of their ass and it would get at least an 85 based on brand name.

Bionic Commando, Wolfenstein, Force Unleashed, X-Men Origins, Dark Sector have a lot more good/decent than "very poor" reviews.

Lost: Via Domus was nice, but just because I'm a huge fan of the series.

Wot, Wolfenstein got bad reviews? No it didnt.

OT:
Clive Barkers Jericho
Star Wars Force Unleashed (actually it got decent reviews)
Enemy Territory: Quake Wars
Alone in the Dark

Too Human- Far from perfect, but I still had a blast

I enjoy Dynasty Warriors games! I know they're bad but I enjoy them quite a lot.