Is there a strong platoon factor? If he's strong against lefties (or righties) then he may be more valuable to a given owner. Will his ratings truly admit playing at either corner? How good a defender is he (especially arm rating if you are getting him to plug in in RF)?
That said, I would expect him to be a fourth outfielder type and would give according to my teams' needs as much as on expectation of much upside.
Dave N