In tournament play, it's generally advisable to avoid risking large sums of chips in coin flip situations, like pocket sixes versus A-K. After all, the pocket pair is only a very slight heads-up favorite.
Obsessing about statistics won't make you a better poker player. In fact, you'll end up wasting too much valuable time on that stuff when you should be concentrating on crucial issues, like getting a read on your opponents and studying the psychological aspects of the game.
It's one of my basic premises for tournament play: Choose to bet the lesser amount when a smaller-sized bet will accomplish the same objective as a bigger one.
One pair rarely wins an Omaha pot, even if that pair is aces. In Hold'em, on the other hand, a pair of aces is right around the average winning hand.
The biggest differences between Omaha and Hold'em is that you get four hole cards in Omaha as opposed to two in Hold'em, and in Omaha, you can only use two of your hole cards and must play three cards from the board.
In golf, no one learns to hit a draw, a fade, or a cut shot until they've been taught how to hit the ball straight. Similarly, novice poker players need to learn how to 'hit it straight' before taking on more difficult concepts.
