I'd prefer 2 Channels tbh.
And with Marshall, any I've owned or played requires some serious Crankage to get them to Distort/Overdrive. With Peavey's, Mesas, Bugeras, etc. They get good tones at lower volumes, and phenomenal tones at cranked volumes. I think its the american style distortion I like rather than British Overdrive.
I seriously considering the Laney VH100 though :)