The way that I look at it, both teams would be better if we wouldn't have switched. We'd both have more wins. Why? Because both QB's would be operating better in the systems, and thinking less.
It's too frickin early to determine who really wins in this. Even because of the draft picks, which I love, I'd rather have the right QB for my team. The way they are both playing is indicative of them both missing time, and playing in new systems. For those who'd argue that Cignetti's offense is way different, I really don't believe that, and the verbage is so similar, that Bradford's learning curve would be close to equal with whatever changes, Kelly has made with his offense.
Too early to declare a winner, we won't know, until both QB's know their respective systems, JMO.