Shadow Commander Vs. TAW God Sword set

Trying to decide what to do with my newly acquired Classics Nemesis Prime. I am not sure if I should go the Shadow Commander route or the P.E. TAW God Sword route. I have experience with Shadow Commander via City Commander but I don't have experience with the God Sword set other than video reviews. Anybody who has their Nemesis Prime in the TAW set up? Opinions on either set?
Shadow Commander

Not sure about Shadow Commander because it basically turns Nemesis Prime into an Evil Ultra Magnus and I don't know if I need an evil Ultra Magnus in my collection.
VS.
TAW God Sword

Not sure exactly what this represents but it looks cool.
Shadow Commander

Not sure about Shadow Commander because it basically turns Nemesis Prime into an Evil Ultra Magnus and I don't know if I need an evil Ultra Magnus in my collection.
VS.
TAW God Sword

Not sure exactly what this represents but it looks cool.