I think you gotta stay with FinHeaven, its unique and a killer name. I don't dislike DolphinsNation, but there really is nothing unique about it ie "RaidersNation" etc etc
The only 2 things i could think of are:
1. Some sort of sports/nfl ticker that comes across the page with up-to-date news. (but i dont know how that may work)
2. I just joined this site a few months ago and you may already have this but what about a link on the homepage that has all the fins stats for each player and team updated each week.
The return of SlipperySoap!!!
miss the roster and depth chart
What I liked about Finheaven that the others didn't have was the front page. Please bring it back.