Spruce has more attack to it, cedar is warmer and smoother.

When I got my decent classical guitar, I ended up with a cedar top - spruce was OK, but it seemed too harsh for the type of pieces I like playing. And with my octave mandolin, the cedar top seemed to tame the high-end harshness that mandolins can be prone to. If you want a harder edge to your sound, spruce will do that.

But the only real way forward is for you to play them and listen to them, so you can tell which one suits *you*. It's not us that's going to be playing it! ;-)

Graham.