That's a tough one, but they both own over the DOTD Sparx. My vote goes to West, because his attitude fit just a little better than Spade's.
I'm really happy for you, but Jazz Jackrabbit is one of the best platformers of all time.
OF ALL TIME!
I liked David Spade much more..Basically I think David Spade's voice suits Sparx more than Billy West's.
David Spade, he's way more funny than Billy West.
Considering the fact that Billy West is my all time favorite voice actor, obviously I voted for him. He was way more fitting for Sparx anyways. Plus, Billy West does the voice of Fry from Futurama! I find that the best part.
I'm trying to start some Spyro Projects, check my guestbook for details, please throw some ideas to me so I can do as best as I can for the fandom. ^^
Personally I think probably the exact opposite of what everyone here thought. Billy West was a great voice actor, and David Spade... ugh... After Chris Farley died David Spade's career in acting died as well.