What is the riskiest gambit?

There are so many gambits in chess but which one is the riskiest? Also, What is your favorite gambit opening to play? 

I really enjoy the Nakhmanson gambit. Here's a video of that gambit. Some of the mainlines are incredible!

https://youtu.be/7RjJKBuV45g

Halloween gambit is one of my favourites and very risky because if black plays one of the many refutations you get a miserable position before move 12. My highest rated victory of all time was using the Halloween gambit- i took down a 2700 anonymous GM with it in a bullet game

The Jerome gambit involves white sacrificing not a pawn, but as much as 2 pieces in the opening. Pretty dang risky if you ask me.

I'd probably have to say the Englund Gambit. It is full of traps, but if white avoids them, then you're basically screwed.  

botez and jerome gambit

birds opening, if you play a wrong move, it would be the 4 move checkmate

What are you gambiting though?

OHHHH GAMBIT

SORRY

My favourite gambit would be King Gambit.Very tactical . I think Danish Gambit is risky for the one who took all the pawns up for grabs.

Kings gambit is great and probably one of my favourite openings. However, another very interesting gambit, although there is never really that much opportunity to play it, is the benko gambit. The elephant gambit is absolutely terrible though and I think it is possibly the worst.

Your Mom's Gambit

I guess I don't know what the definition of "riskiest" is. There are two possible definitions:

1. the one that is pretty much resignable if your opponent knows the refutation.

2. the one with the highest likelihood that your opponent knows the refutation.

Sometimes refutations aren't immediately winning but just put your opponent in a bad position. Stafford Gambit refutations are this way. If you know a good refutation, black isn't dead, but they are definitely on the path to losing. Other refutations, like those to the Jerome gambit pretty much make a position resignable.

Do you play the botez gambit

Lol

I love the botez gambit, ive played it multiple times, but I think its my issue, ive lost all of them, I dont understand how my opponent can defend against such a powerful move.

 To me, in just four moves, this is one of The most interesting positions in any opening.
 The Schliemann Ruy Lopez. Its too bad they're playing boring 3...a6 lines in the championship match when 3... f5! is much more interesting & exciting. 

e4 e5 Nf3 Nc6 Bb5 f5! Nc3?! (d3 is probably the safest)  Nd4! (instead of fxe)