I think they're fairly different games.
A lot of Remakes end up as fairly different games. In this case, I'm pretty sure I remember reading something (Nintendo Power) where it was said the idea behind the Game Boy version of Donkey Kong was to remake the game as if it was something being made today (obviously 'today' referring to the time in which the game was produced.) This makes it more than just a port or re-release - it's a true remake, by any definition of the word.
New Poll is up.
Hey Bob, how about you leave the poll open for more than two fucking days next time? I missed it completely because I don't visit this board too often on weekends.
Hey vudu, how about you read the initial post...

And discuss it here. The voting will be active for 48 hours
I picked two days because I felt there wasn't much of a need to let discussion go on for too long - discussion on SMB3 kinda died off toward the end. With that said, I'm not *against* the idea of allowing polling to last longer, if the people ask for it. Just not you, because you were rude.
So this really boils down to the Arcade version vs. NES version. If you want ports, there is also the GBA version (Classic NES series), Animal Crossing version, e-Reader version, Virtual Console version, ColecoVision version, etc.
Yeah, this is a poll I went lazy on. I seriously could have maxed out the options here.
Atari 2600, ColecoVision, Intellivision, NES (twice, in the Arcade Series and with DK Jr. in Donkey Kong Classics), Atari 400/800, early PC versions, Apple LLe, C64, on the N64 with DK64, GCN with Animal Crossing, e-Reader, GBA's NES Classics series... Game and Watch (which has been ported over a couple of times....).
Still think Nintendo should put the Arcade version on the VC. Yeah, it'd tank the NES version's sales, but who's really buying that at this point anyway? I can't imagine there'd be any real additional cost towards doing it and they can always charge that 600 point price to actually make more money off it...