At their respective best i would take Cooney but Bartel delivers at a higher level more consistently. Although Cooney will always get no1 tag at bulldogs, whereas Ablett gets no1 at Geelong and theres other players that might even get no2 tag at Geelong eg Selwood. So i reckon if i had to choose one for my team i would go Cooney although the difference is miniscule, i just see him as more of a matchwinner whereas Bartel is more your top level consistent player.