I've been playing first person shooters for around 20 years now (since I played Wolfenstein 3D when it was released). They never really grabbed my attention at all at any point, with maybe three notable exceptions:
1. Unreal Tournament (the original, though the others are okay I guess).
2. Half Life/ Half Life 2
3. Alien Versus Predator
4. Soldier of Fortune
Alright, that's more than three
UT was just great fun, and the control system just seemed tight in a way that Quake wasn't. I also didn't suck at it in the way I did with Quake (III).
Half Life and Half Life 2 are all about the story and advancement. Cunning level design and a real want to play the game. The fact it's a FPS is secondary to everything else. Sadly the further HL episodes were just plain old shooters.
AvP was just brilliant. Fan of the films and the original game was just blindingly well designed. Multiplayer was also awesome!
SoF? No idea why I loved this, but it was the first FPS I ever completed.
I play them every so often still, and do enjoy them to a degree, but they have to have something special that grabs me. I'm also (except for UT) a very cautious, slow player. I don't rush into things and I dislike getting into blazing fire fights - I just can't really cope with the interface well enough to do it (yes, my dislike comes from lack of basic ability LOL). So when I see things like L4D, it just makes me cringe inside :lol:
However, I can just bang on about how all games now are dull, brown FPS and that games developers have no imagination - it helps me to sleep at night!