Never owned a Rat, so I decided to pick up a JHS Pack Rat to see which one I liked best and maybe go down that variant's rabbit role, but nah, I'm good with this...
I have two PackRats. They kick ass. I also have two Bonsais.
My list of Rat types:
ProCo Turbo Rat (Sold; almost but not cigar)
ProCo You Dirty Rat (Sold; didn't care for it)
ProCo Deucetone Rat (Love it)
GuitarPCB Ratt Deluxe in a Rat box (it was really thin sounding and not all that Rat esque anymore)
VFE Alpha Dog (I had three, and sold them unfortunately; I needed the money)
68 Pedals Landgraff MO'D clone (sold; it was great, but there was a quality somewhere in the upper mids or treble region that I didn't care for)
JHS PackRat (I have two, they are great; I use the Big Box, White Face, and Brat modes mostly, but liked the JHS and Landgraff modes some as well)
JHS/StewMac All American (I think I had two at one point; tried to like it, but the sweep knob was way too drastic on one of them at least, so it'd get super bassy and scooped, sort of like a neck pickup in a 22 fret guitar with the tone knob at 0)
I'm sure I've had others, but they escape me at the moment.