Oh man, My favorite food ever it a Hamburger. And I mean HAM burger. No cheese on it. 
do you like it barbequed, pan fried or flame broiled?
You know, Any way! I PREFER Flame broiled though. You can really taste the flame licked part. There's just something special about it. 
Have you ever eaten a flame broiled burger from burger king? They have always specialized in hamburgers.
I have! They taste really great but my big issue with them is that they add too much ketchup to their burgers. Also when it's not tomato season they can put out pretty rough tomatoes on the burger. 
Ketchup is sweet and tangy, do you not like the vinegar in it or do you just prefer more meat?
I think Ketchup is too sweet. It's almost like biting into a tomato that someone put sugar on. It's one of the worst things in terms of condiments. Although I would always prefer more meat. I tend to order a double hamburger so I can have two meat patties.
What is your favorite condiment, if you don't like ketchup too much?
Honestly? Hot Sauce! I use different types on everything! I have about 30 different bottles of sauces at home that are all used for different things! 
Hot sauce is probably my favorite, too! You can eat it on anything!