That would depend on how one wants to view what is really "sovereign?"
Some think sovereignty must mean having complete and utter control of every thought, desire, action, movement, event, will etc. This view has God needing to play both sides of the chess board to guarantee victory. He has to be the General of both armies, to make sure the right one wins. Some don't find this view all that "powerful" or "sovereign." In fact, IMO, it makes Him appear a bit weak and childish....like a kid in the sandbox with his army men.
On the other hand, some understand sovereignty as depicted in the scriptures, where God is working out all things for His good and ultimate purposes DESPITE the rule of the evil one over this fallen world. This view has God genuinely overpowering his opponents and winning because He is God while his opponent is a mere creature. This view doesn't place the source of the evil will of creatures in the same place as the source of God's good will.
