I always have a hard time assessing apples against oranges . . er . . I mean position players against pitchers.
That said, I had to go with d'Arnaud as top prospect. I just feel he will make an impact sooner, his impact will be greater on the team, and he can become one of the top catchers in the majors in the next year or so. I don't have as much confidence in Wheeler's ability to dominate that so many posters here seem to have.
IMO, Wheeler still has command issues to work out, which I hope he does at AAA in the first half, but Vegas is not the best place for a pitcher to work out his issues. In that hitter's paradise pitchers tend to try to be too precise. It will be a true test, and if he comes out the better for it, we're going to see something special come August and September. Wheeler pitching to d'Arnaud will be a sight to see.
Former B'klyn Dodger fan. Mets Maniac since 1962.