Best table games to play to earn comp credits?

Does anyone know what the best table games are to earn reward credits at Harrahs properties? I like to play roulette and I know you earn credits by the amount you bet and how long you play, but it also says by what game you play.

The casino will rate you on what they expect to earn off of your play. Below is a story I wrote on how they rate your play.

When you sit down to play be sure to tell the dealer that you want to be rated and they'll call over the appropriate floorperson who will take down your name and put it on a card along with information on how long you play and how much you bet. The floorperson won't stand there and constantly watch you, instead they'll just glance over every once in awhile to see how much you're betting and note it on the card. If you change tables be sure to tell the floorperson so that they can continue to track your play at the new table.

Usually a casino will want you to play for at least three hours and virtually all casinos use the same formula to calculate your comp value. They simply take the size of your average bet and multiply it by: the casino's advantage on the game you're playing; the decisions per hour in your game; and the length of your play in hours. The end result is what the casino expects to win from you during your play and most casinos will return anywhere from 10% to 40% of that amount to you in the form of comps.

So, let's say you're a roulette player that averages $20 a spin and you play for four hours. What's that worth in comps? Well, just multiply your average bet ($20), by the casino's advantage in roulette (5.3%) to get $1.06, which is the average amount the casino expects to make on you on each spin of the wheel. You then multiply that by the number of decisions (or spins) per hour (40) to get $42.40, which is the average amount the casino expects to make on you after one hour. Then, multiply that by the total hours of play (4) to get $169.60, which is the average amount the casino expects to make on you during your four hours of play. Since the casinos will return 10% to 40% of that amount in comps, you should qualify for a minimum of $16.96 to a maximum of $67.84 in casino comps.

One thing to keep in mind about comps is that you don't have to lose in order to qualify. The casino only asks that you put in the time to play. So, in our example if, after four hours of gambling, our roulette player ended up winning $100, they would still be eligible for the same amount of comps.

The last thing to mention about comps is that some casino games require skill (blackjack and pai gow poker), or offer various bets that have different casino advantages (craps) so those factors are sometimes adjusted in the equation when determining the casino advantage in those games.