Brandon Sanderson is a demi-god, just read Mistborn and you'll know why he was chosen to finish WoT. Granted, he will never be able to fit Robert Jordan's shoes, no one can, Jordan is full on God. I've read all Sanderson's work but the Alloy of Law and I am waiting on the last book from Sanderson for the WoT. But most of that work is actually Jordan's writing before he died. He finished most of the manuscripts and wrote several important parts before he passed away, dictating to his wife and editors what he wanted to happen that he hadn't put on paper. His wife sort of randomly chose Sanderson to finish the series after he wrote a beautiful eulogy on Jordan's site and she checked his background, noticing that he too was a fantasy writer. Sanderson is even quoted as saying Jordan was one of the main reasons he began writing fantasy in the first place so I find it highly fitting he is finishing the series.
Ha ha, I'm blabbering. Sorry guys, me and Ms. Lily are on a romantic get away weekend vacation, and you'll just have to wait until we get back for an in-game post