So now you've gone and put an interesting couple possibility in my head!
I quite liked Marcus/Kirk in the movie. It seems obvious that the relationship will continue along the lines of the prime universe (if the homage scene is anything to go by), but I also like your Marcus/McCoy suggestion as well. I liked their back and forth while "defusing" the weapon.
So, do I vote for what I believe will happen (which I do like) or do I vote for what looks like a possibly more challenging (and fun?) pair?
where will you be posting the review you mentioned in the Spock/Uhura thread (or have you posted it and I missed it?)