After a long break from modding my iPhone I'm back and starting with dynamic wallpapers either using VWallpaper or Animated GIF files. I have used an earlier version of VWallpaper on my 3G which drained the battery off like crazy. I have never used any animated GIF wallpaper though.
Now my question is, which 1 out of these two options is better for a healthy battery life and will use less resources?