Hi: I'm using the Coralife Super Skimmer for up to 65g on my 90g. I don't really have a good comparison to others (the only other skimmer I've used is my HOB CPR skimmer on my other tank), but I really have no complaints about it. It is easy to adjust the amount of skimmate produced by turning the adjustment knob. It comes with a needlewheel pump included, so that's what I'm using. Gotta make sure the collection cup is screwed on tight after emptying, or it will leak a bit (found out the hard way). If you put it in your sump, that probably isn't too big a deal. I have mine hanging on the sump, so the inside of my stand got a little wet (not too big a deal either).
HTH,
Rob