I also prefer the Sicilian Deferred Wing Gambit, a favorite of IM Levy Rozman and GM Simon Williams.
After 2...g6 Black is the only one who can be better and White is going to have to play accurately and counterintuitively just to equalize
Only a naive guy would claim that "only Black can be better" in a position where white has the move, and he has done nothing wrong in his first two moves.
Actually after something mildly ambitious like 3.c3!? I cannot find a line of the Keres variation (in reverse here) where the extra move a2-a3 for white can be useless, or even harming.
@FizzyBand
I think white has really good kingside play after 2...g6!
That's... not really too much kingside play.