I've tried a few fuzzes but nothing compared to a lot of the peeps on this board. Of the the ones I've owned/tried I would have to say that I can only pick two a that I would call my favorites and aren't leaving my board. I just a got a new fuzz but I haven't been able to try it.
Anyway, top two are Mcspunckle Gnomeratron VTF and Copilot FX Orbit.
The Gnome is an awesome mishmash of a Muff making sweet love to a Brassmaster. It's my favorite pedal. You can get anything from light OD to crazy oscillations.
The Orbit is more of a synth than a fuzz to me and that's why I like so much. You can get gated fuzz sounds, sort of octave down synthy sounds, lazer gun noises, and crazy oscillating messes out of this thing. I love feeding it my Boss PS-6 in S-bend mode set to 2 octaves up. It makes the Orbit do awesome arpeggiations.
I also have a Zoom UF-01 that I like a lot and I just got an Idiotbox Blasteroid that I haven't tried yet. I'd really like to have a Mountain King Magnetar but I can't afford one atm. I'd also love to try the new Darkglass and 3 leaf fuzzes, Team Awesome Fuzz Machine, a bunch of stuff from Idiotbox and Fuzzrocious, and the Diabolik by Malekko and bunch of other stuff. Way too much stuff to list. There are a ton of really nice fuzzes out there. Good luck narrowing it down to 5.