KOF comes to mind since it doesn't heavily rely on scaling and CDs could take the sound chip load.
The Super Spy would probably been blocky as f*ck. League Bowling too, but at least that would have been four player.
Samshow is probably a no no. The other 16 bit ports sucked shit, even some of the PS1 versions do and that machine has better scaling ability, a double speed drive, and the same about of RAM as an Arcade Card. Samshow was built around the Neo's weird nature and it works really well. You could do it on PCE, but it might be like trying to make a film version of Tristram Shandy.
Master of Monsters, Sengoku, Kizuna Encounter, Cyber Lip, Thrash Rally, Aggressors of Dark Combat, Super Baseball 2020, Street Slam, Neo Turf Masters, lots and lots of stuff would work really well if a company as skilled as Hudson did the work.