There are a few issues here - it is impossible to give more than 100%
If Alonso was in a Merc he may have done well but if his car died on three occasions he would not have the championship wrapped up by now! Plus, with the stupid double points rule it would be very difficult for anyone to have the WDC wrapped up half way through the season.
I'm not a Hamilton fan either but I can't think of anyone (not even Alonso) who could have brought a car from 20th to 3rd. Also, let's face it, if it hadn't have been for the stupid decisions made by the team Hamilton would definitely have made second and possibly would have won.
We are all entitled to our opinions but facts speak for themselves.
Lecture over