Resident Evil was really disappointing. I haven't bothered with the other films because of it.
I was all ready to hate this one, but actually thought it was pretty good as far as videogame-based actions movies go (which is a backhanded compliment if there ever was one, but still). Thought the sequel was atrocious though and haven't bothered with the third one.
I tried watching the second RE movie, but it became impossible after our heroine busted through the church window, in slow motion, on a motorcycle.
Sounds like I'll pass on 2 and 3.
I think I went in with the wrong expectations for RE. For some reason I thought they'd stick pretty close to the games and I was looking forward to unusual camera angles, awesome locations, a tense atmosphere etc. As far as I remember, it was a pretty straight-forward action flick.