For me Walford is head and shoulders the best TE in the class. As a seam threat he has everything: some burst, great hands - highpoints the ball, he ghosts past players with great movement skills, positions his body well in contested situations. To me, he's one of those rare players each season for whom the game is moving more slowly than it is for everyone else. He's a willing blocker, but technically it's all a bit of a mess, as far as I can see. I think his footwork when blocking is lousy, but that's very correctable I guess.
I'm sure there are plenty on here who seem him weekly in person and so might have a different perspective, or who know his character better. But I see a tremendous asset in the pass game and a guy who can be at least very competent in-line.
In terms of old-school in-line TEs with a little pass game upside, I like the Notre Dame kid Koyack. He looks the smartest player out of this TE class to me. Very sound blocker, he looks extremely aware and assignment sound. Hasn't been used hugely out wide, but he's not devoid of ability there from the clips I've seen. With Lynch in the stable, I doubt a guy like him would be a target for Miami, but he'll be a nice pickup for someone if he can be had in the 4th. Not a great year for TEs though, so I suspect they'll all be overdrafted somewhat.