I think it depends on what your selling, as to what type of listing template or format works. 

My current inkfrog template is  a little more "busy" than I would like, but I just haven't got around to selecting a new one. 

As fellow clothing seller, IMO some color and pretty borders seems to work well with fashion for women, but I think something more masculine works better with mens gear. I have different template choices for different types of stock. 

Overall though, one ebay, I think that great photos and good descriptions will get you far more sales than pizazz ever will.