I'll let mace make the final call, because this has kind of become his baby--and he clearly puts some nice effort into it--but my recommendation would be Josh Fellhauer. The RF was 2-3 with a HR, 3 runs scored, and 2BB.
Hessman had an arguably better day, but he's a career minor leaguer, and I prefer to see the award go to someone who has a potential future with the team.