I don't think anyone goes to Cane's because the chicken is especially better than anywhere else.
It's the sauce.
It's the same sauce you find at I'm sure are dozens of different places, and it's not new. A place in Gainesville 25 years ago had that sauce, called Guthrie's.
The sauce isn't some otherworldy thing, either, but it is good. It's different.
I will say a well-cooked crinkle-cut fry is the best fry, and they have crinkle-cut fries. Not usually cooked perfectly, though. I only mention it because In-n-Out is always called the best ff burger...but their fries are the absolute worst.