OBP and Power for one
I already broke this down.
over a 162-game average, Dunn hits a whopping 4 more HRs than Tex, and has a HUMONGOUS .003 lead in OBP.
Dunn is sooooooooo much better than Tex.

now, I'll say again, I won't MIND getting Dunn if we make a legitimate offer to Tex and he refuses. But I think we need to pursue Tex as much as possible, and then if that doesn't work out, we get Dunn.