Top Free Agent-Cliff Lee,Adam Dunn,Carl Crawford?

Of the three in your question...I think you have to go with Carl Crawford. He is a five tool player who will have an impact every single day...whereas pitchers impact your club once every 5th day. Yes, Cliff Lee is a phenomenal talent and pitching is HUGE in the game of baseball, but a player like Crawford on your team playing every day is hard to come by. He is fast and covers a ton of ground in the outfield, steals bases, hits home runs, gets on base, and can do all this at the top of an order. Dunn is a power hitter and can change the game with one swing at any time, but Crawford can change the game (or save the game with defense) at any time as well and in more than one way (ie Dunn with power). But of course all of this depends on what you do and don't have on your team. Every team values every free agent differently.