King's Gambit (Attack on f7)

My opponent defended pretty well until he/she left the f7 square undefended.  A definite no no in this opening.  I had two choices on move 14:  Bxf7+ or Ng5.  I decided to play 14. Bxf7+ which is not as strong as 14. Ng5.  My opponent played it incorrectly, allowing me to have a discovered check and win of the queen.