What Mosquito Repellent Works the Best? [POLL]

When it comes to mosquito repellents, you could spend all summer picking one. And despite your thorough selection of mosquito repellent, you could end up with one that acts more like a siren call to all mosquitoes that the buffet is now open. What mosquito repellent works best?

Have you had any luck, really keeping the mighty mosquito away?