TM: IMO, (and I've had them both) Fatburger makes I&O a very distant contender. I hope you get a chance to compare both.
It seems to me that I&O had plans for expansion into other regions until the President of the company was killed in a plane crash a few years ago. At the time his daugher was about 21 and she took over the company so they have been in sort of a 'quite mode' while she assimilates the job. A traggic story to be sure but, from what I've read, this young woman has shown the ability to take on the mantle, it's just the time of the learning curve.