I don’t think so. Vettel has always been a better driver than Mark but his immaturity and lack of experience over the last two seasons allowed them to fight in the championship. Now that Vettel has won the championship his confidence has rocketed through the roof and ever since Korea last year he’s been brilliantly level headed.
I’ve been super impressed by him so far this year and his ability to manage a race from the front. Webber is harder on his tyres than Vettel and the problems he’s had in the last two races have put him amongst the pack, which have exacerbated his tyre wear. He still drove a fantastic race yesterday and I’m sure there will be occasions this year when he beats Vettel.
Favouritism? No. Seb is simply a better driver, and would make a whole lot of sense if the team did start to focus on Vettel should the championship tighten up.