Which one would you choose to stay?

Collins, Kirkland and Henry could all choose to enter the draft this year. If you could pick just one to stay, who would it be and why?

For me it would come down to Henry or Collins. Kirkland has been a good player but not as dominant as I would have expected at tackle (which I would expect him to play again if he returned). And I trust that Wallace is as good as advertised and would be a suitable replacement.
While I realize we are paper thin at RB and have a good young group of TE's, I would have to chose HH. He is clutch and would be a nice option for the new qb.