I'd love to see my Dawgs play H&As with a ton of teams, but I realize they can't in my lifetime. Texas and ND are great opponents, I'm OK with UCLA, Clemson is a great opponent but 60 miles from campus or so, and we've done that fairly often.
Just about any Big Ten opponent would be great for an H&A. Oklahoma would be great. Oregon, Washington, USC.... it's a long list. Can't play'em all.
What would happen if some playoff caliber P5 team "manned up" and played 4 P5 programs a year in addition to the 8 conference games, and they win their conference but split the OOC games to end up 11-2 with close losses and some impressive wins? Would they get chosen over a 12-1 P5 conference champ? Probably not, but maybe.