My fav's are TAF pack 6 and MBritt pack 2 and they have a lot similar crunch and distortion going on, not to mention bang for the buck.
TAF has everything under the sun at this point it's hard to put any one characterization on them. And MBritt has a big difference between pack 1 and 2/Dumble.
<I like SoundSide's cleans, Pete's Marshall's, and lately sinmix's bass profile I just tried as well as the metal ones I've tried (not into modern metal, but I keep an open mind for such tones as tools in a mix) plus I think he has classic profiles I haven't tried yet.