Italian game no contest! I play it a lot and have lots of fun games! Close second goes to the King's Gambit, because it's always fun to play when I'm feeling violent,
Favorite open king's pawn game.
Sort:
I love the Ruy Lopez for white. Especially when black plays the Berlin defense. The Italian game is also fine, but I like the position of the bishop in de Spanish more on c2.
Ruy Lopez, Exchange Variation. I like simpler positions and don't mind endgames. Trying not to focus as much on openings now, but it's definitely something I like to play! Italian as a close second for the crazy attacks it can generate.