A lot of Vettel’s reliability issues were stemmed by poor on track decisions, e.g. running into his team mate / Button etc.
There were a couple of failures, but it was his own errors that meant that anyone else was even in the running really.
You could also argue on face value, that more specifically it was also Webber’s errors that even gave him the chance to win in the first place.
Vettel didn’t do anything miraculous to win in 2010, the other drivers (Webber) / teams (Ferrari) messed up to gift him the championship. He was still worthy of the title, but no more so than Raikkonnen when he was gifted his title in 2007 (NOTE I AM A MASSIVE KIMI FAN and believe he definitely deserves to have won a title, but it should have been in either 2003 or 2005, not 2007).
Similarly Hamilton should have won in 2007, but not in 2008 – Massa deserved it that year.
2010 is less clear cut than 2007 or 2008. However, on balance I think the driver of the year, and more worthy champion (much as I hate him) would have been Alonso, as he had no right to even be in the title hunt, but his relentless consistency pulled him into the race, and when you come to the last race of the season and are in the right place to get the job done, which Alonso was… ultimately, there is only one thing that could give Vettel the Championship and that was Ferrari f***king it up….
Obviously 2011 was a dominant win, and fair play to him. If he wins this season, then I will start rating him higher, but at the moment he’s a way off Alonso, even thought they have similar stats from a Wins / Titles perspective. On a par with Hamilton.