Full disclosure: I never played Offensive Line. I've never Coaches Offensive Line. And thus I lack the background knowledge necessary to honestly and intelligibly evaluate the position.
But Joe Bugel did (play Guard at Western Kentucky), has (Coached for over 30 years, the vast majority of that as Offensive Line Coach with stints in Detroit, Houston and, of course, Washington) and is quite possibly the most knowledgeable offensive line mind in the NFL. He's also responsible for our famous namesake "Hogs".
And per The Times he took a moment out of his day to evaluate the guys vying for our Starting Guard spot. Make sure to check out the entire article as I'm only quoting a few choice cuts: