Big Muffs, I have 9 vintage and modern muffs. EHX and Sovtek.
The only stock muffs I hate are Sovtek ones, even the popular green one sucks stock.
The only muffs I havent modded are NYC RI's, a 81 and a 78 opamp muff and the new BMP+TW
The BMP+TW is possibly the best muff ever made, its very nice indeed.
Don't like fuzz factories?(i don't like oscillating fuzzes anyways, I like them "simple" and "normal")_, they are too thin...I came up with a very simple mod for fuzz factories years ago, nowadays everyone online is doing it. They do sound better after the mod, more guts and bass.
I generally just use big muffs or a distortion of some sort occasionally,usually something by tech 21 or a full sized metal muff for heavy riffs tuned in B.
I also have a woolly mammoth, its a sick fuzz, very simple circuit which is almost a fuzz face in a way but not, sounds great anyways...the sub frequencies are intense!
I also like the DBA FuzzWar, it sounds cool! I'm yet to buy it.