Tbh, In RS3, don't get fixated so much on what type of Dragon weapon you use.

All of them are t60, they will have the same accuracy. Over time, you will see an average amount of damage between all of them. In addition, the PVM you do won't see any major difference between stab and slash in NPCs that are weak to melee.

Only concern yourself what type of t70+ weapons you use because then you start focusing on things like individual weapon passive abilities, augmentable or not, set effects, etc.

You will probably burn your way to Level 70 Attack before you realize that you no longer need Dragon gear and the discussion is no longer relevant.