Love to see the Honda McLaren partnership win in 2015, I expect the Honda powerunit to be very strong, as they had an entire year to develop that power unit on their Dyno, they still need some test mileage but they should have a good understanding of the system integration issues.
On your second point, I still can't see Alonso at McLaren in 2015 or ever, because of his past issues with them...I don't Believe Ron is a guy that forget when someone try to Blackmail him...remember Max Mosely nazi scandal!!!
Bram