A quad mesh LOOKS better to me visually, but I've been wondering the same thing for awhile now. In most instances I know my mesh got converted into tris by the software, sometimes like for realflow I've converted my Mesh to tris before exporting. Is there a reason quads are considered the 'Way to Go'?. Sometimes my experience modelling would be so much easier if I was allowed to turn that 5 sided poly into 3 tris.... My GUESS has always been that it produces 'Poles'??