I think that the drain-powers are far too weak, specially drain life.
The way I see it, drain life should kill the target, draining it of it's life, instead of just sipping a bit of it...
Drain force should be even worse, since losing the force is fatal for most people(see the jedi masters for example...)
I know that had it been like this, the game balance would be totally destroyed, but it seems more realistic my way. Or? Opinions, anyone?