Lancome is great... and, Clinique is too, but they're rather expensive. Cover Girl, Maybelline, and Almay are good & low-cost cosmetics. Makeup isn't magic; it can't make you pretty if aren't already, so ya might as well spend as little as possible... ;-)
It depends on your skin type/color and what you want your make up to look like... And most of my make up are all different brands, so you don't need I find one good brand of make up and only buy from that.
If it's truly professional makeup you're looking for, it's either MAC or Makeup Forever. Both of these have extensive professional lines with products that you likely won't find at the nearest Sephora.
AVON products are the best. Not to mention there is a line called Mark which has a beautiful line as well. The skin care line is amazing. Everything is hypoallergenic and 100% guaranteed . You can go to my website at www.youravon.com/danacollins . There is also a virtual makeup tool that is fun to do. You can contact me with any questions at Dannyeheart@yahoo.com.