I'll tell you right now, it'll be hard to judge the two head to head. Cutler won't attempt as many passes. I'd expect Cutler to attempt honestly around 150 less than Stafford. Last, this isn't really an excuse... But Megatron is the best WR in the NFL, he will help Stafford out a lot! Seriously reminds me of the Randy Moss era, but bigger and stronger.
You are already setting up the excuses. At least we agree that Tebow is 64, although there may be few 3rd stringers and free agent I would rank higher. McNabb for one. Garrard (has he signed anywhere?)