The one you know how to use?
Judging by this, and your "Which VST's are essential for IDM" thread, I'm beginning to think you might be approaching this the wrong way.
Do you actually have Renoise, Ableton, and FLStudio? If so, then my answer is "One of those three is THE BEST DAW FOR IDM... EVER". You may find you want to rewire one to another, in which case, whichever of the remaining two you end up slaving to the first is "THE SECOND BEST DAW FOR IDM... EVER" The third one is probably pretty decent as well.
Last edited by penguinoid; 23-02-2012 at 06:15 AM..