Please, you can't tell me you've seen the FFIV DS CG trailer and NOT say an Amano style CG art would work for FFVI. Hell I actually got goosebumps from seeing the CG opening and Ending in Anthology. I say stick with what SQ knows best and be damn sure to stick with Amano's designs cause he is an artistic god.

I like Terra and Setzer's portraits as well as their sprites.