I have no opinion on the Roy Rogers burgers -- never had one -- just the fried chicken. The roast beef sandwiches were nothing special, about on par with (or a step up from) Arby's (which I used to like, too, until the last one I had was spoiled and haven't gone back since)...
But as an aside to fried chicken, the Foodtown by me has great fried chicken. Shop-Rite has terrible fried chicken. And Pathmark seems to be somewhere in the middle, visually, but I won't try them -- their deli area is a disgrace, as bad as their produce, but I get most everything else there (great prices) as it's the closest to me. Well, not great prices for their fried chicken. $1 for a freakin' wing is ridiculous!