McDonald's burgers were and are always terrible. Their nuggets are awesome though. Their fish filets were pretty decent too before the fish patty magically shrunk to the size of a half-dollar.
BK's whoppers are pretty good if I'm kinda desperate and I'm willing to drive 15min to the nearest BK.
In-N-Out's awesome when I have it.
Everything else = bleh.
I haven't eaten from a non-Subway fast food restaurant in forever, though. Maybe twice in the past four months.