If those video poker players have skills, they can try to maximize their chances of winning, but still, both games need luck so they can not have a big expectation to win in a video poker game as they can meet the other player have high skills in poker. If a gambler does not have skills and only depends on his luck, then slots could be the best choice to gamble. I guess each game will have its fan and we do not know how many of those like both games.
Yup, video poker still relies on luck, it's kind of similar to blackjack where no matter how well you know the game you'll eventually get crushed by the house edge.
In terms of house edge video poker is one of the lowest (it ranges between 0.5% to 1%) it so it'll come in handy if you're a gambler who prefer to play low edge games.
Unlike with video poker you're going to rely with how the odds will be working, and if you're expert on reading minds towards your opponent then choosing this game is the right choice instead of slot which the house has the advantage.
In video poker there's no need to read minds or analyze their movement since you're against the house.