Best make up, foundation??!!!?

I'm looking for a good foundation. I'm 14, and most people say that when your young you should just use powder because its more natural. I have a bare minerals powder foundation that i do really like but it doesnt really cover up that much, and i dont think it looks that natural. My mom sells mary kay and i have a creme foundation from them i use that i like and think works better than the powder. I want to try a liquid foundation, but i dont know what to use. I kind of want to branch out of the mary kay and i dont know who has the best make up. I'm kind of between MAC and Make Up Forever. Whats your favorite??!! And lipsticks that you like? Your favorite brand?