I use the MRC. It works great, I don't think anything will out perform it but it does need a powerful pump.
I like the feature that the collection cup is sealed other than the drain. This allows me to put the hose from the drain a few inches from the bottom of the waste bucket. When the waste gets above the hose the added air pressure causes it to slow down/stop skimming and not overflow the waste bucket and preventing a lot of freshwater addition.
Another slight drawback is that the Beckett must be cleaned periodically.