My question to you is, do you have any version of the City Commander mold? If not, then I say DEFINITELY go for Shadow Commander. Everyone needs at least one version of that mold, and I don't know anyone that's regretted it

Yes, the figure in full-armor mode can be a bit bulky, but it's really not as bad as I've heard people claim it is. Plus, I'm sure it's cheaper than the God Sword, like woah.
After you have him in your hands, start saving up for the God Sword. The way it's priced, I don't think they're going to be selling out anytime soon, so you've got some time.