Hightower is the far and away better player.
I think Edge were to get nicked up, Tim Hightower would be looked at as an offensive rookie of the year candidate. Guy is just plain explosive. Edge is the opposite of explosive.
Reminds me a lot of the Faulk/Jackson situation a few years back. Except Edge is not as talented as Faulk was, but he has a little more left in him. Hightower is even more raw than Jackson was, but he sure does remind me of him. I wish I had picked up Hightower on the cheap in my dynasty league this offseason, that is for sure.