Why the **** would you prefer him? All that Conte accomplished so far, is dominating serie A at the time when all other major clubs completely collapsed. In Europe he was ****.
Allegri, on the other hand? First season in CL, he beat Madrid comfortably and scared the living **** out of Barca in the final. Yesterday he scared the living **** out of Bayern. ****, back in Milan, he scared the living **** out of peak Pep's Barca, while playing a squad with average age over 35. He's a wizard tactician, give him time and money, and he will deliver. Conte is a gamble at best.
Because out of the two of them, I've been much more impressed with Conte's handling of the players at his disposal. Like I said, he made a potentially unbalanced midfield really sing, and managed to get the best out of pretty much all 4 of them. That is something we definitely need because at the moment we're still a mess in midfield and seeing as the players in question all look to be staying at this point, the next manager needs to be someone who can make things work.
I am also wary of the way that Pogba continues to develop under Allegri, or rather doesn't. He is increasingly flamboyant and wasteful in possession, which gets nicely disguised by the highlight reel but it's still there. He is still a technical and physical monster, but his reading of the game isn't developing. Obviously you can't blame the manager entirely for that, but Allegri's more advanced use of him isn't helping with the issue.
Chuck in some other things (dressing room dynamics etc) and I'd rather have Conte. It's not entirely logical though, I will happily admit. I just can't shake the feeling that Allegri would not do well for us. Would love to be proven wrong though.