I haven't played Quake since version one, has anyone else here played the origional, has it improved since?
Hard for me to answer, I as find Quake 1 flawless. It's totally brilliant. I wonder if there's any Linux binaries that actually WORK (ie, not compiled for libc5) out there.
Quake 2 was pretty good also, very different, but good in its own right. The mission-based gameplay was a bit disorganized, but it wins in all other areas.
Quake 3 was...bleh. Great for people who love multiplayer, I guess, but I never got much into that. UT2k4 is a much better multiplayer game than Q3 anyway, from personal experience, so I bet the then-current release (plain UT?) also beat it.
I've recently given up on true gaming, so I don't think I'll even play Q4. I might fire up Q1 every once in a while, but I don't go farther than that.