Have to say, yet again, Youngman is my tip for the top with diversity at the moment... Great techno and electro trax under his own name, great electronica with his "Audible" project and another new project which is under wraps at the moment.. is also pretty hot on the mike, coming from NYC obviously helping matters... Keep an eye out for a new remix he has coming on the next scandinavia, ok, it's definitely not one for the 4/4 troopers, but musically, it's really accomplished...
The point is, it takes a lot more skill to put together a track with varied instrumentation, vocals and true melodies than to put together a 1 bar techno loop, and I wouldn't consider a producer who just makes a few different styles of techno as really that diverse IMO....
it all depends what you want, records that are nice and easy to mix and sound "Pumping" on a big rig, or something that really is musically different...