Do Apple users think that Flash will transition 3 frames of PNG/JPG/GIF ads worse than a custom iAd/Apple solution? Trendy Adobe hate aside, how terrible could

Do Apple users think that Flash will transition 3 frames of PNG/JPG/GIF ads worse than a custom iAd/Apple solution? Trendy Adobe hate aside, how terrible could it possibly be? In actuality, not delusional fanboy opinion. Betting that it is not very different resource-wise.