Meh.
I've always appreciated double cheeseburgers at fast food for their superior meat-to-bun ratios, but I'm not fond of McD's or Wendy's -- the former is a single mushy texture top-to-bottom, and Wendy's always seems to have this flavor of overcooked meat -- yes they're all well done, but it's something about Wendy's that just tastes overcooked.
Burger King, for all their microwaved cheese and 3-hour-burps of eau-d'Flame Broil, has always been my double cheese of choice.
But that's probably because I've never had an In-And-Out Burger.
What is patriotism, but the love of good things we ate in our childhood?
-- Lin Yutang