I know that many gamblers in casino games will choose Poker because of some personal skills and choices to make when playing. The first time when I played Poker games, I was novice on the board which I don't know what was going on and I was like an observer or a supervisor in the seat. When it is my turned to play I saw some features below my username like, Fold, Raise, bet, etc and I was only clicking on Raise and it was later I understood all those features and play well with others but I loss out.
Slot games like fruit matching or cutting, I have never win any day. So I don't even go there. But in crash games I have won good number of times although crash game is mathematical (calculative). If the player knows when to hit the plane or fly, he can make some wins. Among all Poker the s the most preferable casino game.
There are set of individuals who choose Poker because they want to used their skills against another player. So it's more of a skill based but obviously, you need also some luck to get a good card and even in the river or the flop, you can turn a not so winning card to a high percentage.
And there are also who loves the adrenaline games like Crash and Slot games. No rules whatsoever, no skills needed, just luck and you need to have some capital and then see how the games will be. Maybe in the next round you will hit that bonus and goes for a huge multiplier.
So everyone is very different here and everyone choices is the right one for them.