This question came up in another thread. Since I'm looking forward to BBQing/grilling as soon as the weather here gets a bit warmer, I thought it might be fun to see what everyone likes.
I grew up putting ketchup on hot dogs, but haven't liked that in a long time. Personally, I like either BBQ sauce, onions, or chili. If I can't have one of those, I'll generally eat it plain.