Vienna gambit or Kings gambit: which is better?

Vienna.

Really it depends which gambit in the Vienna your talking about

Possibly of interest:
A Chess Opening Repertoire for Blitz and Rapid by Evgeny Sveshnikov and Vladimir Sveshnikov
https://www.newinchess.com/media/wysiwyg/product_pdf/9020.pdf

The Modern Vienna Game

https://www.newinchess.com/media/wysiwyg/product_pdf/7493.pdf
The King’s Gambit by John Shaw
http://www.chessvibes.com/?q=review-the-king%E2%80%99s-gambit

https://www.qualitychess.co.uk/ebooks/KingsGambit-excerpt.pdf

Yeah, I’ve actually played the Kings gambit a ton. I love it, but black has so many different responses and it’s so sharp Its hard to not make a mistake in the opening or mid game. When I play it right I actually have had great success, but I’ve actually had better success with the declined variations. I’ve been looking at the bishops openings transpositions, a couple of which lead to variations of the Vienna gambit. There are also variations of the bishops opening that end up in Kings gambit declined lines with a pawn on d3. They seems less sharp, though I could be wrong. Do you believe they are less sharp?

obviously about the gambit that is like a delayed king's gambit

I have that. Good white repertoire. Slightly offbeat.

In my opinion... play what you like more.

Let me see...Hammpe Allager Gambit?....Steinitz Gambit??...Pierce Gambit???...Pseudo MacDonnells Gambit????....which??....idiot

Discussed in chapter 21 of the Sveshnikov book:
 

Discussed in the Modern Vienna book:

+1 

First of all: 

• I never play e4 so I do not play the Vienna of KG as white
• I do answer e4 with e5 so I played against KG and Vienna a lot 
• We are talking about the gambit (with 3. f4 not about the system with 3. g3 (3. g3 is stronger)

I think both openings do not promise white an opening advantage. In both openings black can equalize in various ways. Having said that ... For practical reasons I do think the KG is the better opening and the reason is that the road to equality in the Vienna is fairly easy and fairly well known. Also the remaining position is not that tactical. In KG black of course can equalize as well but the there are more ways for white to deviate without getting in a worse position also even in the remaining positions after the equalizing lines the position remains tactical. 

As a black play i rather face the Vienna than the KG 

@Hadron, this is the Vienna Gambit.

Vienna Gambit is its name: https://www.365chess.com/eco/C25-C29_Vienna_game

The d5 move is crucial

Seriously?

First, look at the original question King's Gambit or the Vienna Gambit? 

You can NOT compare the King's gambit to what you believe is the Vienna Gambit because exf4 is an option for Black in one and really not in the other.

Don't get me wrong, it is easy enough to find a truck load of games with 1.e4 e5 2.Nc3 Nf6 3.f4 exf4 but you will find there is a reason why it is almost universally ignored in favor of  Sigurdnor point of 3.f4 .d5!, White wins a large percentage of the games

But if you want to compare a gambit with a gambit then

is the only way to go which is why I asked in post #3 which Vienna Gambit specially was the OP asking about

It seems to me that one can take any two opening-move-sequences and ask which gives White a better mid game.

Good advice. 

With your big rating you can be a coach yourself.

Короткий, чё ты тут воду мутишь ?!?