Personally, I would kill for original arcade versions of Donkey Kong and Mario Bros instead of the crappy NES versions. I'd also like Nintendo's Popeye arcade game, but I realize that Nintendo isn't going to deal with the licensing behind that these days.
From Square, I would want FFI-XII in a single collection. For the SNES games I want the original SNES roms instead of the iOS/Android ports they push these days.
Namco has actually done a pretty fair job of curating its classic library. You can buy all five volumes of Namco Museum on PSN for play on PS3 or Vita, and they usually offer their old games in muti-game bundles. The Namco Museum titles are unfortunately not 100% comprehensive and are missing classics like Rolling Thunder, but they're pretty good.


