The problem with this line of thought had we drafted and signed Marino in 1983 we'd likely have more success in the following years and not be in place to draft Bruce or likely not nabbed Reich in the same draft etc. Kelly's bolting allowed us to get more parts of those squads and allow him to develop some. That said I agree Dan was a better QB than Kelly and if roster were identical minus QBs the Bills with Marino are a better squad. I could see us easily beating the Giants in XXV with Dan instead of Jim.
Yes, Ferrell Edmunds made the Pro Bowl with Miami in 1989 and 1990. Toss in Keith Jackson spent some time in Miami.