I have a 6505 which does most of what you're asking for. Might not be all the tones you're after as most people use it for metally sounds. I don't though and I still love it. You can pick up a 6505+ pretty cheap used since they're not uber expensive new. It also takes a butt load of neglect. I can leave it on overnight with the power section cranked and it's never shown any signs of anything bad (which I have done in multiple drunken hazes).
I've used it for all kinds of styles. It crunches up really nice if you ride the volume knob and not the gain knob - It can get fizzy fast otherwise. Techincally it's 2 channels but the clean has a crunch/boost thing which is foot switchable.
Maybe it's not your thing, maybe it is. You may be as shocked as others are when I show them what it can do. I love it!
Either way, good luck in your search!
Les Paul > Line6 G50 > 6505+
Get drunk and loud and move around.
Everything I said is just my 0.02 cents and not to be taken too seriously! I don't mean any harm, even if I inadvertently caused some!