Dolphins had a terrible offense last season, there is no question about that. The qb situation hasn't improved. I dont think anyone can count on Culpepper. Is Green the answer? I dont know, he is 37 years old and is being pushed out for Damon Huard. Green did not play well after his concussion and the dolphins have a worse line than the chiefs.
Dolphins recievers are probably equal to last year. Ginn hasnt played a game yet so he could make them better, or worse. They also have the oldest defense in the nfl.
The Jets on the other hand upgraded their biggest weakness which was the running game. Every other starter remains and they added a new RB, and drafted two players that may start or atleast contribute a lot to the defense. The jets defense also had the second best points allowed defense in the second half of the season. So they now have a year of the 3-4 under their belt. They also have a very young team and are in great salary cap shape.
Besides dolphin fans, I dont think there is anyone who would take the dolphins over the jets right now. We'll have to see how Beck and Ginn turn out.