I've had :-
Crunch Box
Krank Distortus Maximus
MI Audio Tube Zone
Blackstar HT Dual
Blackstar HT Dist
Box of Rock
Xotic AC Booster.
But, I'd say the winner out of all those for what you want, by a reasonable margin, is a new aquisition for me .... The Digitech Hardwire Valve Distortion SC-2. Also a complete bargain, as available for about £70 if you look around !!
Thoroughly recommended !