How much do you want to spend? In my experience, the quality of steak at Disney tends to be in proportion to what you spend - although not always - our steak at Le Cellier was better and cheaper than the one at Narcoosees.
My husband is the steak eater, his favorite to date is Jiko, which was the most expensive steak we've had there.
I consider Le Cellier to be a good value steak. Not the best steak we've had at Disney, but really good for the money.
Shula's apparently has a great steak, but holds with the "you'll pay for it."