Brooks is significantly better than Vogt. Vogt has played well (besides against OSU), but is far behind Brooks in terms of defense and rebounding. And Vogt has had major foul trouble in each of his last two seasons (as well as against OSU). Vogt's success has come against teams with guys who are 5-6" inches shorter than him, real teams will have bigs.
I'd take LoJo over McNeal. LoJo would have given us a PG for multiple years, he also is longer and more athletic. Neither McNeal or LoJo brings much on offense, but LoJo brings more on D and rebounding.
Hardnett is playing out of position - backup center - for an undermanned Buffalo. We could definitely use his size for both defense and rebounding.
Cronin recruited players for their defense and rebounding, so if they brought little on offense it wasn't a big deal - the offensive scheme ran through only a few players. Brannen recruited guys who are on average smaller, less athletic and worse at defense/rebounding, but who were supposed to make up for that by being more offensively skilled. His scheme involves everyone on offense. So far, only 2 players (Jaevin, Vogt) bring enough on offense that the defense/rebounding drop is arguably worth the trade-off.