Which tool is better?

[ZetTheLegendaryHero]

I've never used ScreenGet, but AnimGet works pretty well. The palettes are slightly off though, if I remember correctly (it has been a while).

If possible, pausing your emulator and frame stepping is also a good tactic. A bit more hassle but the palettes will be correct and you can skip duplicate frames for the sprite you're ripping.

Thanks!