XP2 or XP3 is what I'd go with.
Never had any problems with my xp2, and I could go 2 months or more before I had to clean it, had it on a overstocked 46bow. Flow never seemed to slow down. Way quieter than my emperor 400. It's now on my growout 29g and I haven't cleaned it since I set it up in march. Still working like a champ.