Top 6 Software would have to be

1) Vanguard 4 leads n riffs
2) Superwave Trance-Pro 4 leads n riffs
3) Korg Legacy Cell 4 leads n riffs
4) Z3ta v1.4 4 leads n riffs
5) V-Station 4 leads n riffs
6) LinPlug Albino 4 pads

These are the main ones i use...but i have had the chance to try out the Korg Triton pack for Halion which apparently has all the presets and capabilities like the real synth...which would definitly knock all the shit i listed out of the water...love that synth...wish i had the money for it...

Also Reaktor has put out some awesome collabrations...

Seb