The Lee/Benjamin conundrum is an interesting one. Personally I side with Michael Salfino when it comes to WRs - a .1 difference in 40 times means almost nothing in pads. However, a 4 inch advantage over the corner could mean everything.
I lean towards Evans & Benjamin for that reason. That said, I think the Ravens could use a Wes Welker style possession receiver (as many of you have mentioned) and I don't know if any of the guys in the first round have that skill set. Maybe Lee, but I'm not really sure.
I'm not really sold on Clinton Dix, so my preference would be to trade down and probably take Benjamin in the mid 20s. Fill holes at LB & TE in the middle rounds.
The problem with Benjamin is his hands are below average at best. He disappeared for large portions of games because he can't catch well, and he's also old for a rookie. There's a reason he was pretty much absent from that National Title game until the end. We've seen plenty of receivers with size flame out before. If you don't know how to use that advantage and if you can't get open, what good are you? Benjamin looks like a bust to me, I'd rather have Evans, but I'm not a fan of either.
I'd also like to contest the need for a Wes Welker type. Marlon Brown had difficulty getting open on the outside and looks more like a slot receiver to me, which is essentially what Welker is. And Welker isn't a possession receiver, he's a savvy route runner. He caught a lot of balls because the Pats and Broncos could scheme him open, but he actually drops a lot of balls and his reputation as this phenomenally sure handed guy is unfounded.
I'm not a Clinton-Dix fan either though. He seemed to get lost in coverage more than he should.