I liked Red Dawn at the time and although it doesn't hold up as well as it once did, I still like a lot of elements of it, like the choices the teenagers have to make (about torturing/executing) and being forced to grow up and deal with death and fighting a guerilla war.
Of course, the USSR is no longer a threat so it's a product of its time, but there's still a lot to like IMO, even if it's a bit ridiculous.
Not sure how they'd do a remake, unless they just set it back in the cold war days, but with hindsight being what it is, I'm not sure how that would come across.