I love the Minotaur. I'd never played an original or a clone, but after trying the Helix, I bough 4 or 5 different clones and the Helix is better than any of them, if only because I can pair up an EQ in tandem and active them both automagically. (The only real pedal that does this is the JHS Rockaway Archer, which I also wound up buying.)
I also love the OCD, The Timmy and the new EP model... Just for busting out on a lead.
@OP, I haven't had much time with a real Rat at all, but I can say that at between all the TS-based pedals and Klones I've had, the "bare-metal" pedals all sound slightly different from each other, and the Helix is squarely in the ballpark of the pedals that it models...