Ok,.....Newsfeed is easy.....there's a drop down arrow to the right of Newsfeed option on left of your page where you can choose to set it to either Top Stories ir Most Recent.
As for the posts by friends,....there's a way of setting preferences on each individual person, but I'm beggared if I can remember how to do it now.
Re all posts from liked pages,....think you've gotta go to Page itself to set that.
Bit vague, I know, but hope that helps a bit. If not,...there's always FB's Help Centre ;)
Baths x x