Across the top 6 nationally, anyone can beat anyone else on a given day.
I think the Maryland team will have an edge in longer games (especially on a hot summer day) where the bench will be used. 1-20. I think M&D is the best team, but I'd give the edge to YJ 1-12. (problem is that YJ has a massive drop when you get to their bench)
In terms of positional ranking, here is how I would rank them.