Answer: It’s the Wampler Ego Compressor.
Why:? It has a blend knob.
Discussion: Almost every guitarist who wants a compressor says, “I want a transparent compressor, compression without the squish!”. The blend knob allows you to get the sustain and compressor benefits you want while not having the squish you don’t want.
Honorable mention: (and cheaper) the Xotic SP Compressor
Having said that, I personally really like the “Mooer Yellow Comp”, it’s very inexpensive and I think it sounds/works great.