I always tend to have fillet steak cooked Blue, purley because I am usless at cooking it at home and I can never get any meat that is good enough to be so undercooked. boring I know!
What I order varies depending on the restaurant I go to and what I am hungry for at that particular time. The exception is Applebee's - I always get the Santa Fe Chicken Salad when I go there! It is a big green salad with grilled strips of chicken breast and a Mexi-Ranch dressing - wish I had one right now!
Again, depends on the restaurant and what I feel like eating that day.....although I don't know why but I tend to order seafood more often than not when I eat out, so any dish with shrimps, prawns, salmon is perfect (though I never eat stuff like eels, octopus, squid etc, bit gross really)