Experience and coaching are huge, but so are the tangibles and intangibles. To me Robinson's upside is enormous, and Matthews is already very polished. They both helped themselves today, because they both graded out to be MORE athletic than people thought they were. What flavor do you like? Robinson is the best road grater that I have ever seen in college. Matthews is by far the best pass pro guy in this draft, and it's quite amazing that Matthews was on the right side for 3 years, and how seamless he plays on the left.
I'd be happy with either guy, and with a few more, but I envision plugging Robinson in at guard, and him eventually replacing Jake Long, IF we don't move from the #2. I think Robinson would be a better Guard/Tackle, and Matthews is a pure Tackle right now. In a couple of years, and Pro Bowls at Guard, when Long is done, slide him to OLT, of course all the time teaching him the position, and boom. I don't see Lewan playing Guard either, really, but Matthews would be a very effective Guard in my opinion if we took him, but it would seem a bit of a waste to me.