Aeroplan Transfer Time
2 data points:
1) My MR account > my Aeroplan account: Instant
2) My wife's MR account > my Aeroplan account: ~24 hrs
Both of these were first time transfers. The difference could be in the names being different or in the way I added my AC account info. For 1) I typed in the number of points I wanted to transfer and only added my FF# at the very end. For 2) I first linked my FF account with her MR account, then did the transfer.