either mac eyeliners or a lancome eyeliner mac has alot 2 choose from and the best one from lancome is Le Crayon Khôl EyeLiner with mac eyeliners it all depends what u like best and how u are going to use it the website tells u what each one is best for hope i was of any help

http://www.maccosmetics.com/templates/products/mp.tmpl?CATEGORY_ID=CATEGORY15101

drugstore eyeliners won't last as long trust me and even if they do they are not as dark and smooth and they sometimes hurt ur eye when putting it on