Looks like this thread is not limited to actual physical amps.
Currently using the following amp sims:
For dirts:
Love the grit, punch, and tightness of these two combined!
For cleans:
Surprisingly, this amp sim has the best clean tone that I wanted and needed. Combined with a few modulations (chorus, phaser, delays, reverbs), the amp sparkles on its own!
For soloing:
Boosted with a TS type pedal, this amp makes my lead lines sing!
Speakers used: Mackie CR3