Cajun I use Forte as my host for all my soft synths..Roland Hyper Canvas, Super Quartet, Orchestral,DXi...M-Audio KeyRig...Native Instruments B4 and FM7...
Live synth with SGM128 soundfonts..

I also use it with JammerLive...OneManBand...Band in a Box...

My controller varies..mostly I use my DisCover5[Roland], because it has backup sequence playback and on board sounds that I use independently..Also my G1000 with even more backup capabilities...