I would say that a player of your strength will learn more about tactics, attacking and defending, by playing the King's Gambit. You'll get murdered on a regular basis to start with but you shouldn't give up, persistence pays dividends.
Here's some of my annotated games playing the King's Gambit:
http://www.chess.com/forum/view/game-showcase/kings-gambit-miniature-c31
http://www.chess.com/forum/view/chess-openings/c37-kings-gambit-accepted-rosentreter-testa-gambit
http://www.chess.com/forum/view/chess-openings/kings-gambit-2--qh4-c30
http://www.chess.com/forum/view/game-showcase/cunningham-defence-to-the-kings-gambit-a-miniature
That should give you a taste of the King's Gambit.
Kings gambit or Queens Gambit? Do you think this depends on your king/queen side attack/ piece position? Come shed a little light my way. I haven't really tried out Kings gambit so I would love a "regular" to argue for that side.