[Jared Russell]

I have "simulated" IRI using each team's best regional/divisional OPR (tiebreaker: average OPR from Ed Law's post-Championship spreadsheet). I assumed "optimal" play - the teams seed according to OPR, and pick the highest OPR team available in every situation (keeping in mind the 1-8, 1-8, 8-1 IRI selection order). Here are the alliances that I ended up with (also making the assumption that all invited teams do attend):

#1: 2056 - 469 - 25 - 340
#2: 341 - 118 - 1023 - 111
#3: 2826 - 67 - 330 - 3322
#4: 1114 - 33 - 3098 - 971
#5: 548 - 359 - 744 - 829
#6: 148 - 254 - 2054 - 1676
#7: 973 - 624 - 16 - 2168
#8: 2481 - 868 - 68 - 399

All predictions are guaranteed to be wrong, or your money back.