You are right if he doesn´t want to put it in a 3d engine, but if he wanted to do so it would be better for performance, because the engine doesn´t have to triangulate the n-sided polys. Correct me if i´m wrong ;)
Its not just that i think most engines try to triangulate it for you.. sometimes really messing up the mesh and u get funky poly's made that stick out from the model :o (hard to explain) Anyway i dont think its right when you dont put much effort or time on a model then ask for feedback... put more effort in and you will…