What is your favorite chess opening?

good one.

Ruy Lopez Exchange variation

Any one else?

The Gucci Piano.

The Italian opening 2 knights defense favors black so I like it.

The Traxler Counter-Attack.

The Rifle Attack

I like 1. c4 and I think it's called c4 opening. I only have 1 move in my opening. I can't checkmate my opponent in 1 move, maybe in the middle game or end game, I can.

bean 1c4 is the english opening a personnel fave

I like c4 as well.  Does anybody like 1.B4?  I do not.  Just wondered.  :)

It is played very often in OTB chess games!!  I can not refute it well.

Nobody plays B4?? thats weird... I know a ton of people who do.

My made up is the blitzkrieg defense.e4 Kxe4 done!

Franco-Benoni. I get a crappy position and still manage to win.

French defense

the ones i lose to by not knowing are faves too as they make me study them post game to learn their tactical motifs

I like openings that are considered unsound, and throw your opponent off their regular game.
* Blackmar-Diemer Gambit
* Gibbins-Wiedehagen Gambit
* Göring Gambit
* Halloween Gambit

etc. No guarantee for winning, but definitely a guarantee for interesting and dynamic games! 

The scotch and the queens gambit are good for me.

Oh and as black Caro kan vs e4 and nf6 to d4