You are VERY lucky if you find a gum that doesn't have its flavor vanish before you've gotten in a bunch of chews.  Orbit cinnamon has a lot of flavor and you can actually sit down while chewing.  With other gums, you don't even reach your chair before you run out of flavor and have to get up to toss it away.  Best of all, it's sugar free -- that's zero calories. Can't get better than that.