I'll eat any of them. Spaghetti is most common though since it's at work so I can eat it whenever. Can't go wrong with spaghetti. :3 I also really like tortellini, does stuffed pasta count?
As for sauce, almost any tomato sauce works for me. Since I've been working at the pizza place for 3 years now, that's what I prefer, just because I'm so used to it. I loved canned sauce before but now I am really picky.