Can't argue with any of that, but in addition to what DR brings to the table as a QB, consider this......I am not saying I am not hyped about him coming here. I think for the long haul he is more important than McCord.
If you held a gun to my head and said pick
McCord
Kaelin
Raiola
No one else
If I am the coach I'd probably go the McCord/Kaelin route. Do I think Raiola has the most potential, hell yes I do. I also know that so did Fidone... but injuries happen right. So having a serviceable backup is more important to the program in my honest opinion.
He will drag elite players with him, at least IMHO. Players a year below him will want to play with/for him, so that redounds to the second (possibly third) year after he commits. Once he commits, he immediately raises the prestige of NU to CFB, and that notoriety is worth its weight in gold. Finally, his commitment would give NU the inside track to his younger brother, who by accounts I've read, is elite as well. So, there's more to him committing to NU than just his play.