I'm just gonna say this...of all of them, it's McGann I want to see again the most. He only had the one shot on screen, and, of them all, he should have the opportunity to be seen as the Doctor onscreen again on the BBC in the actual proper BBC Doctor Who, not just the collaborative TV movie. Let him get his proper chance to shine again. There's really not a Doctor I complete dislike. Some I like more than others, obviously - that's true of most if not all of us..but there is one actor for whom I feel kinda sorry, and it's him. I hope that gets remedied.
I'd love to see McGann again too, but to be honest I think that would be more fitting for a regular season episode.
For the 50th Anniversary, I think I'd rather see them highlight Doctors who had a bigger and more longer-lasting impact on the series.
Plus, with only one story to his name (that most people have really heard of), there just isn't much to work with as far as the Eighth Doctor's character goes.