They're about equal.
Cotchery - more yards.
Coles - more TDs (gets red zone targets)
It is a misconception that Coles gets targeted more in the red zone.2007 red zone targets: Coles 14, Cotchery 12
2006 red zone targets: Coles 15, Cotchery 21
ETA: in the past 2 seasons, Coles has 14/92/6 on 29 targets in the red zone; Cotchery has 14/106/3 on 33 targets
Of course, there is no guarantee that Coles won't get targeted more than Cotchery going forward, but I don't see any rationale for that. As already noted in the thread, Cotchery is in his prime, while Coles is beyond his, and Cotchery seems to be building at least slightly better chemistry with Favre. None of that guarantees anything for Cotchery, but what case is there that Coles will get more red zone looks?
It's no misconception.Coles missed many more games than Cotchery and still had more red zone targets. I had Cotchery last year and saw first hand how they went to Coles in the end zone. In fact in one series, they were on the one and threw a fade to Coles that was incomplete. The very next play, they threw to Coles again, this time for the TD.
Of course I was livid

and remember it very clearly.
Well, first of all, you bolded 2007 but ignored 2006, when they both played 16 games and Cotchery had more red zone targets. I decided to compare the red zone targets in the games in which both played in 2007. They both played in weeks 1-8, 11, and 14 last season. In those games, Cotchery had 9 red zone targets and Coles had 11. (I did this by scanning FBG play by play info for those games, so I can't swear these are accurate.)
That means over the past two years, in games played by both of them, Cotchery had 30 red zone targets and Coles had 26. I think that reinforces my original point.
All that said, I agree that with a new QB, and likely different playcalling that will fit Favre's skillset, which is quite different from Pennington's, this past data is not necssarily a good indicator of how targets will be divided this year. Still, it would seem that all signs point to Cotchery outperforming Coles this year, and that is what I expect.