What this guy said. I quite like the gameplay of Angry Birds, but they are more or less all the same and unless you're crazily addicted you really only need the best one... which is Star Wars AB.
It's loaded with IAPs and ads for their other games. Also, most of the people that get it for free wouldn't have bought it in the first place, so they lose nothing.
This is the only Angry Birds I didn't bother to buy, so getting it for free ain't such a bad thing...
