In poker, the strength of a hand is crucial to success, with the top 20 hands ranked by their rarity and power. The highest is the Royal Flush, a combination of A, K, Q, J, and 10 of the same suit, followed by the Straight Flush and Four of a Kind. Other strong hands include Full House, Flush, and Straight. As players navigate the game, understanding these rankings—from the powerful to the more common—can significantly influence strategy and decision-making, ultimately determining the outcome of each hand.