I've never used WSF, so I can't comment on how well it loads or the performance it produces. However, I have used VV for MANY years and have found the recommended powders for my 9mm loads to always produce EXCELLENT results being loaded through the Dillon XL650s and the RL1100. It has also been recommend to me by very experienced loaders and manufacturers in the business to use VV N320, N330, or N340 for anything from 115g to 147g and above shooting standard velocities. If you download the VV reloading data, you can see info for several powders depending on the velocity you desire.
IMO, and after using it a while instead of N320, the N330 is an awesome powder that provides excellent results and will work with about any bullet weight you can use.
HTHs
PS: Some good info on VV powders...............