Seriously.. I've been in Japan for 3 years now and damn the difference between the McDonalds here and the ones in Spain (where I'm from) is huge.
^^ This is where I always go (not that I go that much, though... but hey)
Anyway, besides the fact that most McDonalds are better looking than most McDonalds in other countries, the best thing is what they have since recently.. the kazasu coupon. With that coupon you go to the McDonalds website in your phone, make your orders (add them to favorites, etc..) and when you go to a McDonalds you just put your phone on top of an scanner and it reads your order in about 1-2 seconds.
Plus, if you register there you get some really awesome discounts and whatnot!
Seriously, is there something similar in any other country?