I'm going to ahead and say that I'm a Taylor Made fanboy, so my answers might be biased.
Driver? Taylor Made R7, Ping G2 (though I'd like to check out the FT-3 when it's released). The R7 just gives me an aura that I'll hit it good, as opposed to my old 320Ti.
Fairway woods? Taylor Made R5, Nike T60
Irons? Can't comment much on these, since I've only had my NDS irons, but I've been hearing great things about the TM RAC CGB's (though one reason is I heard they're stronger lofts compared to other iron sets).
Putter? Odyssey White Hot 2 Ball. Bought my dad this as an early Father's Day gift last month and he's doing much better with it. Played one round with it 2 weekends ago, and while I can't say if it was just luck or whatnot, but took off 4 putts of my lowest putting score with my Nike.
Wedge set? Taylor Made RAC Black or Cleveland CG10's. I use the 56 and 60 TM's with a low bounce and seem to get a really consistant ball flight close to the green. (I don't use either of them at full swing though, rely more on my PW from 15-100 yards, then switch to the SW or LW depending on pin placement). I'll need to get a GW sometime or another. Played one round with my friend's CG10's and I would get them if only I wasn't a stickler for having a matching set.
Ball? While I'm not good enough to see a real benefit from a better ball, I've been having some success with the Titliest V1's.