Why in when playing hearts is there usually one "low" player vs many high ones?

The game of hearts is a card game in which all 52 cards are divied up among 4 players and the game is won by taking the least points possible, the q of spades counting as 13 while each heart counts as 1. Usually there is one player who seems to take close to no points whereas all the other players take many points until they go over whatever the limit is set to. Isnt there some mathematical law or probability law that should not be the case? That, each player should get, on average, 25% of the points available, each person taking the queen once per 4 rounds and 4.5 hearts or so per hand, yet it doesn't work out this way at all in reality it defies the laws of probability or so it would seem. If playing to sixty, there is often a player with 0-20 points and the other players at almost sixty points a piece, I find it strange that it happens this way. I am playing a computer based version on Yahoo! hearts; thus perhaps it is the way the random number generator deals out the cards.