Driveshaft help!!!!

I am trying to decide on either a carbon fiber, chromoly or a Dennys' Nitrous one.
What is going to last and what is going to be the best for me? What are the warranties on these units. I am planning on 9's in the 1/4 eventually, but right now I am in the 10.7 range. With heads going on soon. Low 10's.
What do you all think? Thanks in advance.

