Animation & Models

[MysticWhiteDragon]

I'm interested in what people believe is the most efficient and usable model format for the PSP. I know most people use obj here for static models but what about animated? I wrote a Milkshape3D (*.ms3d) file loader is anyone is interested, but am still curious to see if there is another format that supports things such as bone/joints, etc., that could be used on the PSP.