Honestly, it seems like many of the .30 cans are the same and not that much different (other than weight) so any help would be great.
Weight is quite possibly the most important factor when considering a suppressor.
After owning two, my longer, heavier, but quieter can never gets used except by friends. I only use my shorter, lighter one, even though it is a touch louder.
I'd get an Omega or consider a Gemtech Tracker.