Well I do not know about the other ones, but G3.5 has some real nice turorials on things you're looking to learn, like rolling circles, harriers, torque rolling, etc. They are all narrated and taught by well-known pilots and you can see the stick movements right there.

Keep in mind that you can tweak some things on it to improve the realism, if that's your complaint. The online multiplayer stuff is also very fun. I'm not sure if the others offer that or not, as I only have the G3.5...

There is no better way to learn than doing it the real way, with the real thing.

But the sim is an invaluable tool for learning the stick movements, and the way they are related to the aircraft's movement and attitude as it moves about.

When you start practicing it for real, you won't be so dis-oriented.

Asking any sim to be realistic, as in almost dead-nuts the same(physics-wise) as the real thing, is asking a lot, IMO.