I own them both(comic premium for SW). If you go SW I definetly prefer comic art. I LOVE both games. SW is harder but deeper in modes. Super fast shooter. Wonka is a smooth shooter as well but not as fast. Theres more shots in wonka than SW. The modes arent quite as good as SW, but overall the game is incredible. Really cant go wrong on either.
If I had to say which would never leave my lineup it would be SW on theme.