In terms of cooling i like the Zalman, but it can only hold 290 MM cards, but the NZXT 410 supports 305 mm cards without the front man installed, this is a con of course, BUT you can add 1 side, 1 rear and 2 top fans so you still have optimal cooling. They both support water cooling which is a plus. They both have cable management and a little back cutout for easier CPU cooler installation.
In terms of specs and the like, the Zalman is the winner. Downside is that you have to have a 290 mm card or smaller for this case. But cooling is more important than performance.