That is waaaaaaayyyy too broad of a category, but my favorite food is anything well prepared, quality and well-planned preparation are really the key ingredients to all of my favorite foods.
If I had to choose, My favorite meal is the Cattleman's Cut from Andy Perugino's restaurant in Luzerne PA, 30 minutes from home.
A 22 oz cut of prime rib that is like heaven on your taste buds, order it well unless you really like a bloody steak. Also the baked potatoes are the size of your forearm and a side of mineste (fresh spinach and chi-chi beans sauteed in olive oil, old Italian recipe that I have never found better quality at any other restaurant that serves it)
It's so good I only go there a few times a year to savor it's majesty, and thank you Ossumpei because you have inspired me to go tonight