Blue cheese and saltines is one of my favorite snacks, Danish Blue or Maytag. Stilton is fabulous as well.
My all-time favorite cheese is probably P'tit Basque, but that tends to be more of a holiday purchase. I serve it with Morbier and a smoked Gouda, for a bit of variety.
Sharp Tillamook cheddar has been a mainstay for multiple uses, but lately I've been trying some raw milk cheeses from upstate New York that are quite interesting.