It is pretty important being that a university generally won't take you without going to high school lol. If you're going to go to a community college, you could say screw this, hop out in the 9th grade, get your GED (general education degree), and go to the community college.

Generally speaking a college doesn't care about what classes you took (although they generally have a set standard that you have to take X amount of years of X class), they usually look at the big test scored (SAT's and state tests), and your overall GPA.

They are both important!

You need school to get into colleges, if you do bad in school you will start bottom of college, whereas if you do good in school you can do a straight level 3 a level course! Like school.

Pointless post. Of course high school is important to college. You aren't getting into college if you don't have a high school education.