Which method faster in MIDP-2.0 for solid rectangle?

[Krendel]

Hello, I heared the drawing of sprites are good optimized in MIDP-2.0! Does it be better to use bitmap drawings instead old fillRect?

We can use:
- fillRect()

OR can use:

- drawImage()
- drawRGB()
- Sprite.paint()

Which one will be fastest?
I'm interesting it in practice, not in theory...

p.s. How much time use g.setColor()?