I'm not that bothered by the differences between the two except that they covered his ears ... why would they do that?
It doesn't look better ... it looks lazy (in my opinion); it's not like they're preserving articulation there. It's almost like they misunderstood when fans said they wanted as much flocking as possible ... "well, we can cover up the ears, that will give them more flocking ..."
The loincloth doesn't really make that much difference to me long or short - I can see the appeal of the longer one though as a differentiation from Beast Man.
In the end, I voted for SDCC even though it seems clear the "final" one is the one we'll be getting.