Believe me, he's not. As someone who strongly campaigns for him, it's only because the Republicans keep coming up with the craziest candidates at the governor's level. I mean, Quinn seems like a nice guy, and probably is the type of Democrat I agree with more often than not, he's just glaringly incompetent at actually getting things done.
Would Dillard or Rutherford be doing better than Rauner?
Well, it depends. If we accounted for just issue positions and removed the events of the primary campaign, then probably. However, because of the mudslinging that went on there Rauner remained the "cleanest". Granted, scandals and such matter, obviously, or else we wouldn't be having this conversation. I think from a detached, purely analytical point of view sitting at this time last year, the Republicans' best chance to have the race as a lock would have been to go for Rutherford. The four way primary really exhausted a lot of the candidate's strength, and having Brady in there as a rerun of 2010 was probably a bad move, even if I can see why from some people's point of view it may have seemed like a good idea, namely the closeness of the race. However, while 2014 isn't going to be a great year for Democrats (understatement), 2010 was likely even worse, and I can't see Brady ever doing any better than he did then, even if Quinn repeatedly dropping the ball.