The most popular build in diablo 3 for wizard is this:

http://diablo.somepage.com/popular/wizard#builds

It uses forked lightning and frozen orb

But why?

Does frozen orb synergy with cold blooded? Does it chill or froze enemies?

Why forked lightning? Does it generate more arcane power?

The 44% damage when crit seems to be very low. Blizzard for example, deal 1k% damage.