I'm using a Rio 2100 for a return pump right now... been fine even after running dry a couple of times. Although I want more flow so I'm installing a larger pump when I move my aquarium to my new place.
I'm using a maxiJet 1200 for my return from my under-tank refugium. I didn't need much flow and already had on. Seem to work fine for me. I also have 2 MJ 1200s on the main tank for circulation.