Marshall MG100HDFX

I have an AVT150, combo, and with no other pedals driving it, the tone is pure shit when it comes to distortion, with a considerable clean tone. It is loud as fuck, but that's not the first thing Im looking for in a guitar amplifier.
 
I use one . I have to agree that the combos fucking suck , but the head is definitely pretty good for the money . But , you have to consider the fact that pretty much EVERYTHING contributes to your tone , even what your cabinet is on . and if you have shitty speakers , you're unlikely to get an amazing tone . Same with pickups , which is why I'm getting EMGs , haha .
 
An amp should sound reasonably good with any moderate gear. Good amps don't need pedals or gain boosting to have great distortion.

Personally I don't like any of the Marshall stuff, though the JCM800's are good if you mod them out.

To each, their own though... lol