I think as long as the sizing is right on the boot, the toe shape doesn't matter. I've never had any issues with my pointed toes but my feet haven't grown since I was a teenager, so I guess if you're still growing, a different toe would be better.
ROFLMAO @ smrobs - you're so funny! I WISH I had those perfect feet!! Mine are a train wreck - wide + high arches too. Most shoes don't fit -if they fit length & width, the arch kills me. Otherwise I'd get myself a pretty girly pair. As it is, I buy a boys/mens style so my funky feet will fit lol