Pleasefundus, indiegogo... It really doesn't matter that much since most pledges come from the outside. What I mean is a kickstarter user that's just browsing probably doesn't bring 1% of raised funds.
I wouldn't count on a crowdfunding campaign to allow you to go full-time though, unfortunately. The DF and W2 and TBS campaigns are each an exception, but the rule is getting some extra cash, like $10k, to pay an offshore artist. You might be able to do better since you'll undoubtedly be backed by RPGWatch, RPGCodex and perhaps RPS, but a full-time wage...
But if you go that route you can count me in for at least a little bit. W2 got the lion's share though.
Note that I started but haven't finished KOTC yet. So hard to play when you have a list of tasks that just won't go away on their own