Daniel Negreanu seems to me an excellent player. One of my favorites like Phil Hellmuth. I have read Phil's book and it is very good for me. I hope to read Daniel's too. both players are my favorites.
I don't really have a favorite player. There are more that I like to watch. I like to watch tournaments where Daniel Negreanu and Phil Ivey participate. They are both great players but Daniel is also a showman. He has such energy at the table that you can't help but love him.