Dav.id wrote:I think everybody has z3ta, it's fucking old school
I don't.....yet

. I've heard so many great things about it for years and still haven't even tried the demo. As z3ta is clearly a classic by now, I really should purchase a copy. learn it and put out a new, niche-genre bank for it. There are enough Trance banks out there from what I understand, so a Dubstep set should fill the remaining void quite nicely.
Trance banks are quite popular and might still sell better despite all the bloat in that area, but sounds for that genre do tend to lock you into conforming to certain idioms, whereas Dubstep and IDM are much, much more free, IMHO.
Back on topic...my personal choice would be Massive. The workflow is much more immediate to me and I just happen to like the sonic character of Massive better personally. Plus Massive is by far a better choice for glitch type sound effects and more exotic atmosheres/noisebeds.
http://xenossoundworks.com Quality Sounds for Quality Music
NI Massive, Predator, Blue, Zebra, Sylenth, Scanned Synth Pro, etc, etc.