Do you need 0-10v control? App control? No control other than onboard? Budget? I think Jebao are a good option these days, as they've improved over the years. I also like the pumps Reef Breeders carries. I have the "Coral Box" from them on my nano and it's been very reliable. It has built in 0-10v control and comes with an assortment of fittings, which a lot of pumps do not. If my COR20 ever goes down on my 90g, I'll pick up a couple Coral Box DCA pumps for the price of one COR20. I haven't tried their Nautilus brand yet, but I'm very happy with the Coral Box pump, I would buy it again without hesitation.
Agreed on the controllability of DC pumps - I run mine full blast anyway. I feel that the only nice feature of going DC is that fact that you can connect to an UPS for extended runtime. I have MP40s on UPS but feel that S2/M2 return pumps may serve a better purpose for tank/sump recirculation.