Action Surge is better. Improved Initiative is about equally good, or at least close. Hellfire Blood is probably better.
Which is not to say it isn't very, very good.![]()
I would say that Improved Initiative is the single most important feat for wizards. The ability to go first in the initiative order is of critical importance to a controller, and can make or break a fight.
Yeah, the controller needs to go first in order for them to do there job.
at the heroic level I'd say the must haves are picking up perception some how as a trained skill. And either improved initiative or quick draw.