Last Team to Interview Manning Has the Advantage per PFT, which will likely be Miami baby! They talk about how Manning is just making this up as he goes and is uncecided. Therefore at the end when he is making his decision the last ream he was with probably has an advantage.
http://profootballtalk.nbcsports.com/2012/03/10/manning-is-making-it-up-as-he-goes/
http://profootballtalk.nbcsports.com/2012/03/10/manning-is-making-it-up-as-he-goes/