Yes. Go with the 528. No contest.
Granted - Both units are kind of "iffy" for tracking (why you'd want compression, EQ, expansion, de-essing (etc.) while tracking is beyond me). You could get a really decent preamp in the same price range that would blow either preamp section away. RNP, m101, P-Solo and what not. Even the DMP3 is going to hold up against the 528 (and it's quite a bit better than the Eureka, IMO/E), it's a dual-channel unit and it's ridiculously inexpensive.
Unless, of course, if you're looking for a broadcast/podcast/live use strip... Then just go with the 528.