I tought of this a lot, but as for now one has to choose beetween evil or good but what if He wanted to be neutral, I think that it would be nice to have only neutral skills too ( or even an entire class).

The choice between good and evil doesn't fit with all the playable classes too. Can't say that barbarian are good or evil they are just barbarian Yawr! And rogue, a good rogue would be robin hood-like?! But it still is bad to steal they aren't really good as the knights. Would it be too hard to implement a system like that of D&D( just asking)?

I agree, the good and evil system is getting very confusing/unpleasant experience and due to this I avoid it like the plague and just stay nuetral. 

the perfect thing would be to not have skill limited with your alignment. You chose to be evil or good just because you want, and not because you want a determined skill

Agreed.