User blog comment:Epegi/Hp/5 Vs, Lifesteal in the Early-Mid Game/@comment-4012115-20110929173232/@comment-3067750-20110929215539

Doesn't just depend on your enemy if you want early lifesteal or regen... As I mentioned below, lifesteal is a % healing value where regen is a flat healing value. And in many cases, the Flat value outweighs the % value, especially that early in the game.