I'm confused, you made a comment making fun of Lewis and his inability to beat a team mate at Alonso's level, yet he's proven capable at what many would argue his most inexperienced moment in F1. Also what comment? Lewis has said a few times now, that he has not ability to pick his team mate, made mention of other top WDC driver that do (Vettle and Alonso in their contracts) and said he doesn't care who is put next to him. He'll race them all the same.
See this argument is always made, and it's not the same, Alonso has even as resent as this year come out at length to discuss what happened in 2007. There was no favoritism, he just fell like an outsider joining a group that knew a man from a very young age, and were excited to see the fruit of their labors come to bare. He felt strange about it, and of course it was different especially after coming away from a team run by Flavio that would wreck a driver to help Alonso win. Even Ferrari's ex personnel that had worked with him, called him a diva and aloof. And this comes over clearly many times when driving currently, where Button is far more reserved about the team.
He consistently outperformed? No 2010, Lewis had more retirements and he and Button had strategy issues which Mclaren (now Ferrari) were greatly known for. 2011 is Lewis's fault for sure, no excuses their, he let some sort of famous soon to be washed out pop singer get the better of him, and had a falling out with Anthony Hamilton. 2012 was an even worse season for Lewis and Jenson, in a car that rated highly as the best on the grid, frequently became plagued with team issues that cost critical points. For example losing pole in Spain for being under fueled.
I think the greatest driver bit is the same futile romanticized cliche given, that is only equaled with how people see Samurai, which he tends to set himself to be like. In reality there were many moments Alonso could have made thinks work and choose to play diva and let himself down. It's about time people start to do the same.
Webber is different, now I will say there is equal blame on him for not making something happen, and rather just relishing how team bosses wanted to see him gone but only on his own will. Marko didn't care for the old relics of the team before Newey and co. took over to bring them to the status we now know them. Thus younger drivers of his liking were given noted favoritism. Alonso was welcomed at McLaren, given a nearly bigger number 1 status than Vettel at Ferrari, and in the end let his ego run him afoul.