Nice overview of 3D packages Franz.
AgentD, I think Cinema is the best choice for image mapping not only for it's (relative) ease of entry, but also for it's killer MoGraph system. It makes very complex motion graphics work super quick and easy once you get the hang of Deformers. And the tight integration with After Effects makes it practically a no brainer.
Cinema 4D is a pricy package, but well worth the professional cost. The free lite version that comes with After Effects CC doesn't include the full MoGraph features, but it is a good way to try it out before you plunk down the big bucks.