It's hard to look at a set of stats if you want to gauge how good an offensive lineman is. While there are now some stats that can be used they are mostly subjective, narrowly used, and not at all historical.
Perhaps the best measure of how good a college lineman is would be “People who get paid to find the good ones put them on a professional team”.
If that’s the measure Buffalo has a decent history of guys in the trenches doing their thing and clearing the way for running backs.
The first Bull ever drafted was offensive tackle Les Molnar.