This headline made me think, were there really any truly competent Jedi knights or Jedi masters in the Star Wars universe? This list includes a few from the "extended universe," or other Star Wars stories besides the six movies, and I'm not well familiar with those. But it does point out the flaws in the good guys we know, like Obi-Wan Kenobi.
I think we can give Obi-Wan a pass for being a shitty teacher to Anakin; I mean, he wasn’t remotely qualified, but Qui-Gon gave him the job anyways, forcing Obi-Wan to promise him as he died. That’s some heavy shit to lay on a Padawan, and you can’t blame Obi-Wan for trying — and failing — to fulfill his insane master’s wishes. But you can blame him for everything he did after the prequels. Call me crazy, but lying to the very last Jedi about his dad seems like a recipe for disaster, and indeed, it nearly was. At the very least, it’s probably information Luke could have used before he went to face Vader in ESB, so he didn’t have a massive emotional breakdown or anything. And why the hell did Obi-Wan allow himself to be cut down by Vader in A New Hope, anyway?
Poor teaching skills over two generations and a famous plot hole. I'm still surprised that the death of Obi-Wan wasn't "fixed" in the director's cut. Read the rest of the criticisms at io9. Link