Years ago we loved Narcoossee's, then they changed chef's and it changed a lot. We stopped going.
We discovered JIKO about 2 years ago and love it. It's so tough not to go there when we are in WDW. It is a different dining experience but not too far off from some of the "norm" dishes, just really, really GOOD dishes. They still have my vote for the best filet ANYWHERE, the salmon is great but I still miss the monkfish. I get the tomato, cucumber and onion salad everytime as it is excellent as well! I highly recommend JIKO.
In all fairness, we actually returned to Narcoossee's this past July actually. Started hearing some positive things about it, so I thought it was time to go back and try it again. While we did have good service and great wine, I was not impressed with the food, at all. I got the salmon which cost more than it is at JIKO and it wasn't nearly as good...oh well. Looks like we won't be heading back there again anytime soon...so my vote is for JIKO!