Both are great. Rollers will give your roots more volume though and you'll get a more 'freshly blow dried' look. The wand will give your hair more of a curl. The trick is to make sure when you take the hair off the wand hold it in your hand, still in its curled position, until it cools, then let go. That will keep the hold of the curl far better than if you just let the curl drop down when the hair is still hot. Spray each strand with hairspray as you go. At the end run your fingers through your hair for more natural looking curls. I like using my curling wand, but I prefer blow drying each strand ( so the hair is smoother and hot) and then putting each curler in as I always need more volume in my roots. Though this does take longer!