Rhino is the shit
Plasticz, cos it is so abrasive
Junglist
Cronox
I still like the good old Mercury-1 for it`s grindy noiseyness
Mda DX10 for wierd modulating ringmod metallic percussion
Refx QuadraSid, for C64 SID chip madness!!!
SuperWave Pro good for Juno 106 ish ness
Synth1 for nordishness