Straight FlushĪ straight flush contains any five cards of sequential values in the same suit, which is not a royal flush. It contains cards in order from value 10 to Ace. It hallmarks five back-to-back cards of the same suit. Royal Flush is the most reliable hand as it sits on the top of the table at Poker Hands rankings. Here is our guide to Poker hands rankings which will be pleasant for you as it can be used in cheat sheet Royal Flush What happens in the case of two similar?.Strongest to Weakest Poker-Hand Rankings.