DActivator - is the top of my list of disappointment. I'm still messing with it though. I was really hoping for something clean, and accurate, but hot and smooth at the same time.
super 3 - generally like it but I like it in some guitars better, and it was my first DiMarzio model, sounds better if you have a floyd, a basswood body, and a maple neck and fingerboard. I always run hot and cold with it though, I love the dark sing for some things, but at times I find it kinda boxy.
Fred - HATED it as a bridge pickup, which i originally bought it for - had a weird dense character, and I was really expecting just a subtly different paf pro. Recently i auditioned for a local prog/thrash band and the guitar i had gotten used to playing had a hum from hell in the neck, i swapped this in on grounds of maybe getting a more singing neck sound, and was pleasantly surprised it stil had a very nice glassy sheen to it. LOVE it as a neck pickup, works well with a tone zone, which is what I have in the bridge of this guitar.
PAF Pro - Default neck pickup, but a little wimpy for a bridge pickup though, especially for floating locking trem guitars. So it gets an A as a great neck pup, but I don't like it as a bridge pick up.
Steves Special - Tried to like it twice, and at one point I did like it briefly, but its not my thing, might sound good for some detuned stuff, haven't tried it for that, might screw with it though. Didn't care too much for the plasticky treble it had.
Jackson J90C, I liked this one iirc, had a nice muscular midrange, wish I still had it for comparison. I ended up replacing it with a super 3, and then put it back a couple years later and thought it was everything I was hoping the super 3 was. Although I owned the version with the philister and slugs. They also made a dual slug version they encased in a plastic cover like an emg.
Humbucker from hell - I like this one alot too for the neck, but it didn't quite have enough oomph for me for it to be a staple. Its kind of picky about guitars too, and I couldn't get it to work for me as a general blend, like say a paf pro for the neck. Which surprisingly works well with most.
Tone Zone - One of my favorites! have never had a problem with muddy, farty low end. It seems to work very well with my picking. And I love the mid punch.
Air Norton - Meh, I don't feel one way or the other about it, might un-air it and give it a try.
Air zone - cool fat grind, didn't quite have the drive I was looking for at the time though, might give it another try.
EVO - Just couldn't make them work for me, or my guitars, actually sounded great in a real alder bodied jem though.
Ibanez V7/V8, boring, came stock with a RG1570
Ibanez inf's - belong in the garbage
1997 Peavey wolfgang stocks - Neck pick sounds good, fat, with good drive, bridge pickup is weak, and lacking in comparison though.
Hs3 have them stock on a YJM. I LOVE the sound of these. they are weak in output, but make up for it in the tone dept.
ToneZone S, was okay, but not like the real thing. But I don't know how you could expect it to be.
Fast Track 1, I think I liked it, but I was just a teenager when I had it so I dunno
Chopper, mated it with the TZs, not bad as a neck pick up, but wasnt overly thrilled with it either.