Interesting thread though what constitutes the need for a definitive version is fairly subjective.
Resident Evil 4 for example. We have the original GC game, the PS2 version with added content but cut visuals, then the Wii version with the added content, GC visuals, and new controls options. Of these the Wii version is definitive.
But then there are the HD console and PC versions based off the PS2 version (if I recall correctly). Do we consider the upgrade in resolution to be a feature equivalent to added content? If so than even the Wii version is not definitive.
Nothing wrong with a bit of subjectivity
For me the Wii version remains a clear step above the others, but for people who value the HD visuals especially highly, they may rightly disagree.
Hopefully the incoming mobile versions will address that. Not as good as a remake, but they can become the best way to play the original.
A mobile version without button controls would annoy me, but I'd play it. I can get over that if it resolves everything else. Still... a 3DS/Vita re-release... I can dream.