The best hand in poker is called a “ Royal
      Flush”. This is five cards: 10, Jack, Queen, King and Ace all of the
same suit eg. 
 
    
     The next best hand is a Straight Flush.
  This is any 5 straight running cards all of the same suit eg.  
     
Or 
      
 
The highest straight flush is the straight flush that
    
    runs to the highest card (hence the Royal flush is the top hand).
For example:
    
  
Runs to the 10; so beats
    
  
 
…which runs to the 5. 
     The next best hand is Four of a Kind,
  or a “Poker”, for example:
    or
     With four of a
  kind the fifth card only matters if all of the four cards of the four of a
  kind are in the community cards. Otherwise that card won't really matter,
  because no one will have the same four of a kind as you. 
The highest four of a kind wins: in this example four 7s
    
    beats four 5s. 
  The next best hand is a 
Full House. A
    
    full house is a combination of 3 of a kind and a pair, for example:  
     
or
    
  
The best full house is the full house with the
    
    highest three of a kind, for example: 
    beats
     The next best hand is a Flush. A
  flush is any 5 cards of the same suit, for example: 
    The flush with
  the highest card in it is the winning flush. If two flushes have the same high
  card, then the next highest will be the decider, and if those are the same
  then the next highest is the decider, and so on.
     The next highest
  hand is a Straight. This is five running cards just like a
straight flush except the cards are of mixed suits. For example: 
     Just like a straight flush the best straight is the straight that runs to the
  highest card. 
Thenext best hand is 
Three of a Kind eg.
    The highest 3 of a kind wins. The other
  two cards in this hand, called the “kickers” will decide which three of a kind
  wins when two players have the same three of a kind. For example if two
  players both had three 7s, but one of them had an ace and a jack with theirs
  and the other player's kickers were a king and a queen then the player with
  the ace kicker wins. If both had the same high kicker then the second kicker
  would decide. If they both had the same kickers then it would be a split pot. 
The next highest hand is 
Two Pair eg.
    
  
The player with
    
    the highest pair in the two pairs wins, and if they have the same high pair
  then the player with the highest second pair will win. Again here, if two or
  more players have the same two pair the highest kicker will decide the outcome
  of the hand.
The next highest hand is a simple 
Pair eg
    
  
If two or more players have the same
    
    pair then the kickers will determine the outcome of the hand accordingly. 
If no player has
    
    any of the above hands then the highest card will determine the hand, with
  kickers counting accordingly in the event that two or more players have the
  same high card.