I would first rule out Ridley, because I think he's the lowest of the 3 based on opportunity and opponent. Then I'd honestly have to go with Roddy here; I think he's too good to not start. I'm starting Martin in a few leagues because he's the best option, but if you have a choice like you do; I'd personally go with Roddy and Colston/Wayne (who all seem to be top 10-12 plays this week). Martin could have a nice game; but I'd roll with Roddy and his consistency.
Hope this helps, help if you can: viewtopic.php?f=19&t=527593