I'm sorry, but I HAVE to disagree on some things. I agree that I don't know much about J.J. Abrams from his films, but to say that he is without a vision, or that the examples Bob points out are somehow driven by vision, is a discredit to both.
Peter Jackson has spent the last DECADE adapting someone else's work, someone else's vision, through the lens of his own interpretation of the material. It's a great interpretation and adaptation, but it's not exactly a mind-blowingly unique vision(like District 9, to use Bob's example). Sam Raimi's Spider-man borrowed HEAVILY from pre-existing material, almost beat for beat; as a comic fan, I can point out exactly what scenes he rips off/pays homage to in the first two films almost scene for scene. Even Avengers, which I adored, relies heavily on pre-existing ideas, relationships, characters, and even Joss Whedon was a "safe" pick for an ensemble movie with heroes. When he was picked, NOBODY thought he was going to drop the ball on characterization between the heroes and villains. Nobody. It was as safe a pick as you can imagine (even if it was, initially, an unlikely choice given his limited success elsewhere).
Even then, George Lucas, well... I'll go ahead and say it. George Lucas was a "visionary" but he ALWAYS had a terrible vision. The version of Star Wars that came to theaters was NOT his vision. It was a vision altered, distilled, butchered, and modified by people and editors and storytellers much more gifted and driven by much stronger vision than Lucas ever had in his entire life. Lucas was the spark, but the blazing inferno of Star Wars was created by people with much more fire and talent in their hearts and imaginations, and there's a very good reason Lucas wasn't "satisfied", and never will be, with what these people did to his originally awful conception.
Would I have picked J.J. Abrams? Probably not, but I don't think he's a bad choice. You're right, Bob. He's "safe". But, well, "safe" isn't what you think it means in this case. He's "safe" because he's NOT safe. He's unproven, like you said, in this regard. Star Trek had its faults, but it was widely divergent from ANY Star Trek ANYTHING that came before. It was both respectful to its history yet modern and dynamic. It ushered in new ideas and supplanted old ones. It was daring and brave, yet also "safe" and familiar to old Trekkie fans. It was the best mix of gamble and assured success, but that's what made the movie, and J.J. Abrams, a good pick for it.
You give Star Wars too much power, Bob. You ask "who is this man who has the gall to influence billions of people"? Well, let him make the movie and then find out. You could've asked that about ANY director at some point. "Who is this guy directing Empire Strikes Back that's not Lucas? Who does HE think he is?" "Who is this James Cameron making Aliens after Ridley Scott changed sci-fi horror forever in the original?" "Seriously? We're giving Lord of the Rings to the guy who did Dead Alive/Braindead?!" "Hey, let's give Spider-man to the guy who did EVIL DEAD! Are you KIDDING me?"
Speaking of which... DAMN, I'm so utterly sick of Bob being chronically unable to move past The Amazing Spider-man movie. He just won't let it go. It pops up every bloody time and has been going on almost non-stop for a year now. Seriously, most people LIKE THE DAMN FILM. Bob complains about a lack of risk and falling back on "safe" ideas... what's "safe" about replacing the entire cast of an original film series less than five years after the last, doing a total reboot of an origin story people already think they know, changing an iconic costume, dropping the familiar love interest in favor of a new one, and putting many utterly unique new spins on the well-known property (for better or worse)? Like it or not, it was NOT a "safe" thing to do.
Also... Bob, for the record, "mediocre" basically MEANS "average" - "of only ordinary or moderate quality; neither good nor bad; barely adequate: The car gets only mediocre mileage, but it's fun to drive. Synonyms: undistinguished, commonplace, pedestrian, everyday; run-of-the-mill."
Anyway, I find it silly to judge a decision before we've seen what the man can do with it first. At the very least, seriously, it HAS to be a step up from the prequel trilogy. Even if it's not a homerun, it can't get any worse than "Attack of the Clones" or "The Clone Wars" movies.