I don't have luck with them either...
Part of it is my opponent, who really likes interceptors and tie fighters, and rarely flies ships with agility <3. It's very difficult to land damage with only two attack dice in those cases. I made a custom upgrade to help mitigate this, by letting the a-wing roll +1 attack dice to determine if there was a hit (but not to determine damage). This helps.
I would just fly A wings.