Unless you have the money and expertise to work with LEDs, I would stay away from them. The energy saved isn't worth the cash spent, and they are just difficult to use.
HIDs are the best lights you can get for your plants, but they can be expensive too, they are a pain in the ass to install, and they blow up your energy bill.
Your lighting should depend on your growing situation too. If you have a small/medium size grow box, I would suggest using CFLs. They are a good mediation between HIDs and LEDs They are energy efficient, cheap, easy to install, and provide sufficient light. If you have whole room where you grow, I would probably go with some HIDs though.