The best conditioners I've ever used are KeraSilk (I think Goldwell makes it) and the Synergy conditioner.
If you can find the Kerasilk (unscented) go for it, the scented one is a bit perfumy & overpowering.
If you have curly ringlets, Kerasilk is amazing! It will trun an unruly bird's nest into gorgeous smooth txtured ringlets i a heartbeat.
The Synergy conditioner, leaves your hair feeling like silk. It doesn't just sit there, then go down the drain, it absorbs right into the shaft, and makes your hair feel glorious. You'd have to experience it to know what I'm talking about.