The lovetone big cheese is the king of fuzz pedals, but mine died many moons ago, possibly never to return. Sadly, they don't make 'em any more either, and the £300+ cost of the last run of the Cheese Source (Big Cheese and Brown Source COMBINED) is beyond my means....
I am, however, getting fuzzy excellence from maxing out my VC-30 and running a cheap behringer "Clean" boost (PB100) into the front end.