I like the Dark Messiah of Might & Magic combat style, yes it's an FPS/RPG hybrid game but:
- just bashing your mouse button results in flurry, fast but powerless attacks
- stronger attacks need a powerup time (holding a button for 2 seconds)
- You need to block attacks your self
- special moves need you to perform extra actions, running, crouching...

I like this because combat has a strong focus on your knowledge of the game and judgement, when to strike when to block. What spell to use to certain enemies. Opposed to the Diablo style where anything is good as long your stats and gear are high enough. click click click click click click click click click click health potion click click click click click click health potion click click <-- just isn't interesting combat.

other good points are:
- you do not need to worry about how many npc's you an render without lag
- you can develop unique behaviours to enemies..


It's one of these days...