Favorite openings

I just wanted to pose a question: what is your favorite opening and why? I just want to see what people say

Four Knight's Game, just because of the simplistic advantage it gives white.

I like the King's gambit I thinks its alot of fun to play and can give you good chances.. then again I don't mind playing the black side either.. I'm working on expanding on my knowledge of the ruy lopez and various e4 defenses/attacks in the new year

The Berlin Wall. White's attack is slowed by the trade of queens.

Any of the Gambit openings used by Paul Morphy, especially the Scotch. Morphy was the master of rapid development and NEVER lost tempi.

Just about all of them

Muzio Gambit