While Bullet Dance has more shooting parts in the combos, the combos are all rather bad. The Shooty Combos from Bullet Dance just make it too hard to actually hit enemies consistently.
The best way to use the gun part of the Gunblades is the standing attack->forward attack loop. Doing that with Bullet Dance results in a 125% shot and a 100% shot. High Noon does 2 fast 100% shots and a 100% shot, so High Noon just wins.
It also has a melee only combo should you need that for some reason.