I like quenn's gambit too but my favorite and most agressive is the danish gambit.
Which is your favorite gambit opening?

QG is actual not a real gambit, because Black cannot keep the pawn without getting into severe trouble.
Statistically, the Wolga Gambit (= Benko's gambit) is the most popular Gambit. Black is not keen to get back the pawn, instead he counts on a long-lasting initiative on the queenside. It is known since the fifties that such intiative is often sufficient even without queens.
Other popular Gambits are the KGA and the Budapest Gambit.
All attempts to refute the 3 Gambits have failed until now.
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Some other Gambits I consider personally as incorrect
(large advantage for White, with best play), such as
1.d4 d5, 2.e4, or 1.d4 d5, 2.Nc3 Nf6, 3.e4;
1.d4 Nf6, 2.c4 e6, 3.Nf3 c5, 4.d5 b5;
1.d4 d5, 2.c4 e5, 3.dxe5 d4.

I used to play Kings Gambit a lot, Then i just got bored of having my King so often in f1. Scotch Gambit i do play sometimes, so many ways for black to go wrong

My father tought me the Evan's gambit when I was 13. I loved the pair of bishops pointing at the black king. Actually I believe some of my peers at the chess-club got a little scared accepting the gambit. It's fun to play the Evan's. I might try it again some day ...

I think its a gambit {about queen's}, because it concludes some agressive variations in the slav defence.

That's right. QG is not a real gambit. From all the real gambits, I only play the KG occasionally (in standard). I think it's the only reliable gambit, maybe alongside Evans' gambit and the Budapest, of which I heard good things, although never played them. Any other gambit seems objectively bad to me. I sometimes also play the Elephant/Latvian in blitz, but that just to surprise my opponent. They are easily refutable for a experienced opponent.

My father tought me the Evan's gambit when I was 13. I loved the pair of bishops pointing at the black king. Actually I believe some of my peers at the chess-club got a little scared accepting the gambit. It's fun to play the Evan's. I might try it again some day ...
I think you're talking about the Danish...

I think its a gambit {about queen's}, because it concludes some agressive variations in the slav defence.
Just because it's aggressive it doesn't mean it's a gambit.

Wing gambit is fun, and even if black finds the best lines it's equal. Not the best or most intimidating reply against the Sicilian though. The Manhattan Gambit is also pretty fun, though as black I usually go into the g3 variations. Whenever black goes for a Leningrad setup h4 is better than Qd3-g4 for unconventional replies anyway, Qd3-g4 is best saved for e6 or d5 second moves by black.

I like Blumenfeld gambit, play it quite frequently when white prevents Nimzo-Indian with 3.Nf3.
I also like the Volga (in Poland we never use the name Benko gambit).

I forgot to mention the gambit
1.d4 Nf6, 2.c4 c5, 3.Nf3 (to avoid the Volga Gambit 3.d5 b5, which is probably a correct gambit!!!) cxd4, 4.Nxd4 e5, 5.Nb5 d5 !?,
6.cxd5 Bc5! (of course not 6....Nxd5??, 7.Qxd5!).
It has been played also by Kasparov, and it has not been refuted.
What is the name of this gambit ?
I like the queen's gambit. I dont know why but i like it more than the other ones. I tried the king's gambit and the danish gambit in some games but i didn't like them.