Each variant changes the pay table and the strategy. Jokers wild adds a joker that counts as any card, and deuces games make every two wild, with loose deuces paying extra for four of them. Bonus poker pays more for certain four of a kind hands, and quick quads adds a side wager on them. Multi hand video poker, common online, plays one hold across several hands at once, raising the stake per deal. Plain jacks or better has the lowest variance of the common games.
Players who study the game lean on tools. A strategy analyzer shows the best hold for any deal, books and printed strategy cards cover each variant, and a bankroll calculator estimates how much money a session needs to ride out the swings. Practice at home on free versions is how most players learn the holds before staking anything. The autoplay mode some machines offer holds cards automatically, which is convenient but hides the decisions that make the game worth studying.
Video poker odds are good, and better than slots on most machines because the return is printed rather than hidden. A full pay machine of the classic kind returns more than ninety nine percent with correct play, while a typical slot returns noticeably less and never says exactly how much. The best hands pay most: a royal flush, straight flush and four of a kind carry the top of the table, and small changes to what a full house or flush pays move the whole return.