Obviously, the idea is for the Valve covers to keep the Oil in and the Dirt out, and beyond that, it's generally aesthectics-did you TriStar Covers come with Drippers? If they did, then I would duplicate that, as the Builder deems them necessary.

After that, the problem I've most encountered most has been keeping the Oil in, and some of the Covers out there aren't very flat (which can certainly be rectified)-

I'm a "finned" guy myself, and I chose Moon mostly because of the looks and name-they appear to be flat (I've checked them), and, my only other criteria was that I didn't want PCV holes in them-

Either of the ones you've shown will certainly work (hopefully without modification or extra Gaskets), and I like the Felpro reusable Gaskets myself-this is gonna look good!