First of all, can we give some appreciation to the fact that they are actually seeking out smart, reasonable people to be on the show, as opposed to... whatever kind of pseudo-people as contestants the Endemol craze started?
I like that smart people are answering tough questions. That's a good start. The set is great. The questions are a little generic, but the battles and the top tens spice it up some. The way contestants can keep guessing to avoid a 'wrong' is a nice touch. Richard Quest's hosting works for me. He's charged up, but I think he's staying well behind the line of being obnoxious, and if that's the trade-off for having contestants that don't act like lunatics, I'll take it.
People here are correct that the challenger has too little affect on the game. I'm not sure how to tweak it though. One idea is to have the challenger take over if they win three battles in a row. Rare, but at least it's something the challenger has some control over, and gives some meaning to the battles other than "oh darn, that's a wrong" which happens regularly anyway.
Yeah, the big problem is the pacing, which is mostly down to the awful conversations that the host incites, surely at producers' behest. The current champion, this poor guy, has had to explain why he's leading or following at least ten times now, and I'm getting that eye twitch from excessive insipid conversations that plagued me when The Weakest Link was on. This show becomes a lot more digestible on DVR when you can skip all of the chit-chat, and that's not a good thing for live ratings. And there's definitely some hypocrisy at play when you boast that all of your contestants are GENIUSES, then turn around and ask them over and over why they're leading or following like it's some deep strategy, or saying things like "WHOA! You've answered one question in that category and got it wrong! WHY WOULD YOU CHOOSE THAT CATEGORY, YOU'RE TERRIBLE AT IT??"