I love Maybelline, especially for mascaras/liners. I also love their Baby Lips collection because there's so many colors lol. I never wear foundation unless I'm in a play or going somewhere fancy where I feel it's necessary, and I only use Neutrogena Anti-Blemish. Foundation always made me break out after a few hours of wearing it, but this stuff had acne medication in it, so it doesn't cause acne and helps if I have a pimple.
I've recently fallen a little bit in love with Lancôme. They do natural, flawless looking make-up so well; I've been getting into Clarins a bit as well. Not sure I'd go as far as to call them a favourite, but things like their BB cream are a massive hit with me.