Re: Fulltone Fulldrive 2 or Tonebone Hot British?
If you're using it in a low volume home playing situation, the Tonebone will supply more gain....although I'd speculate that it sounds better with humbuckers than single coils.
For loud stage volume playing, the Fulltone FDII will have a more natural OD tone, since it has the amp's natural drive working for it.
The Tonebone is more gain heavy and focused, which is sometimes overkill in a loud situation, compared to the Fulltone. Conversely, the Fulltone won't be as impressive in a low volume situation.....but ya never know!