I beg to differ. I think there are plenty of excellent (and crappy) sounding options in either configuration.
As for recommendation, it all depends on your needs. If you're using it as an effect and turning it on and off frequently, a pedal would probably be more convenient. If it's a leave-on processor for your sound, and you have a rack-mount rig, a rack unit might be a better call.
When I had a rack-mounted rig, I used a dbx 160A that I liked a lot. Currently, I'm running a Demeter Compulator that I'm also very fond of.