Bitmap vs. vector animation

Hi

I am making a rather simple, but graphic intensive application. It will contain a lot of animations(not one big). My question is: should I load some bitmaps(not cache them as bitmaps on the fly), and then for every frame change the bitmapData of every bitmap, so it will give me the animation? Or should I go with a normal flash animation?

Thanks in advance

I found out Bitmap:hugegrin: