I am having trouble finding a footage comparison between the two cameras shooting the same subject.

Strictly from the image perspective, under film set conditions (i.e. professional lights), no chromakey needed, which camera HVX200 or HMC150 will produce the better image?

Well the HVX200 has a higher bitrate codec but to be perfectly honest I've shot HVX and HMC side by side and had a fairly tough time telling them apart. It's a bargain hunters' camera.

Noah