I am redecorating a room in my house before I sell and I have stripped
of some ugly, peeling wallpaper. I want to paint the walls rather
than put up wallpaper as buyer probably would prefer that.

However, the wall is not that smooth - it has a lot of imperfections
(as well as the occasional hole that can be filled, there are uneven
patches where the wall was painted under the wall paper previously and
in some place the paint remains and others it came off with the wall
paper...) and I don't want to spend days sanding it to a fine finish
(it's a big room, and I'm short on time).

Are there any tricks I can use to cover this up so it has a decent
painted finish? ie. is there a type of paint that is good at covering
the imperfections? does gloss show up imperfections more than matt or
eggshell? etc etc.

Or should I just throw on some wood chip and paint over that...?