The Black Chicken deodorant is the best one I have tried, hands down, by far. It smells wonderful, and is the most effective natural deodorant I've used. The paste formulation did take a bit of adjusting to, but now I'm used to it and I can't go back to traditional deodorants.
I've always been really adverse to the smell of your traditional spray on aluminium based deodorants (they give me headaches AND generally don't work that well on me, fail), so I've tried quite a few different things. Honestly, the Aesop spray deodorant (the original formula) is hands down the best smelling deodorant I've ever used, but I find the Black Chicken way more effective for actually controlling odour throughout the day.