I squeezed in the front nine of Cove after playing Classic before running out of sunlight at IWCC. I've only played IWGR Players once and it wasn't that memorable to me. (I had played its previous incarnation several times when it was IWGR East by Ted Robinson, and Players seemed to follow much of the same routing.) IMO, both Cove and Players are the "lesser" of the two courses at each facility, but I know your options are limited by overseeding. I believe some of the back nine on Cove plays right up against the mountains, which should be cool.
None of what I wrote is very helpful, I know. Personally I'd recommend Cove, but go in with tempered expectations.