Most of those games *should* be able to run really well on an 060 AGA.
I'd personally love to see a decent AGA port of Duke Nukem 3D, I had a look at the source code once but it's a bit nasty so I gave up.
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I've never tried the existing AGA ports of Hexen/Heretic/Duke Nukem but I assume they aren't that great with AGA?
I did try Descent but couldn't even get it to run, after looking at the source code I'm not surprised
I think most of these later ports were really targeted at RTG/PPC/Warp3D.