I’ve never been to Grandma’s, but the rest of the choices are terrible and don’t belong in a “best breakfast” comparison. The closest thing I’ve had to a “good” breakfast at a fast food chain is at A&W, which I don’t think we even have in the states.
My vote goes to Granny’s Kitchen on Oliver in North Tonawanda. Drop your car off at the pole barn that is Tread City Tire, toss your keys to Don who is most likely smoking a big cigar at 7:30am in the office room, and walk 3 blocks to Granny’s Kitchen for some traditional breakfast at a real diner. Eggs, bacon, toast, home fries with onions and peppers, coffee. $5. All while your car gets new shoes.