A Moog LPF eh?
Now yer talkin.. I never looked back after getting mine. My favourite pedal hands down.
I currently use a Mastotron as my main synthy fuzz, always prefered it over the Mammoth.
I also use an Iron Ether oxide for staccato like gated fuzz. I've found this pedal to have the 'tightest' gate if that makes sense.
I've just added a Cog unit to my board with a Tarkin (muff style) fuzz unit built in that's pretty damn impressive if I'm honest.
Like Mattbass said tho, EHX is well worth checking. I used to rock a BBM in dry mode boosted with an Xotic BB, one of the best dirty tones EVER (Dannybuoy will confirm this)
There's still fuzzes I want to try and own, it's never ending.. But yeh, you GOTS to get yo fuzz on