Bests:
1939 Hammond Model D with 1962 Leslie - Many years ago I had traded my brand new Korg M1 and flight case for these. I've since modified them and I can just sit there and play them for hours...sheer ecstacy!
Soundscape mixtremes - I bought my first one in 1998. Anybody still using the same sound card that they had in 1998? 16 ins/16outs, 24 bit and drivers supported by even the newest Windows?
A flat panel touch screen - saves me hours of mousing around. I can't beleive these aren't more common!
Roland JV880 w vintage keys - Only a handful of presets that I use but wow, very distinctive sound.
Korg O1/w - I'll never let this one go.
Korg Triton LE88 - This board's presets just inspired the heck out of me - the action is awesome. Strangely, the acoustic piano sounds are horrible and some notes are even out of tune. But the rest of the sounds are lovely, go figure?
Yamaha TG77 - one of the most powerful and expressive synths ever made. Yeh, you gotta be a total geek to program it but hey, that's what I am...
Yamaha p150 and p200 digital pianos - if you gotta go portable digital piano, they are close enough to the real thing. And very durable.
Yamaha PSR9000 - A wonderful GM synth with 128 note polyphony and for midi tracks, it's hard to beat. Works great with Sonar.
Sonar - of course.
Adobe Audition - for all stereo mastering and editing.
Reason - I never get tired of the posibilities. I've sampled most of my drum machines and use Reason's sample players. Love Subtractor.
Shure KSM32's, SM58's, SM57's, beta58, beta57
AKG shotgun mics (circa 1972 which I use for drum overheads)- every drummer I have come in here tries to take them from me!
JBL control5 speakers - studio workhorses. I love them because I have used them since 1992 and know them so well. And I have Yamaha NS10m's which I love/hate.
I could go on...1963 Fender Strat, JP8, TR808, TR909, TB303, trading my Simmons drums for REAL drums, Alesis HDR24...
Worsts:
Yamaha TX16W - I'm a geek but this damn sampler kicked my ass. So much potential, so f'n convoluted that it was impossible to use.
I guess I have a few others but I'll have to get back with you on that! I've been a gear junkie for sooo long.