As a developer i have always been intent on making cool looking models , but what i think would make my models look extremely good would be curves.
Roblox is not minecraft we shouldn't be restricted to a block world. With curves we could created models which are far more realistic.
I know what you are thinking ... "Curves are already possible with meshes and solid modelling" but i these methods take too much time and should be replaced with something simpler. For example We should have something similar to the extrude tool which is used in google sketch up. By this i mean we could create our brick then we could place a extrude point on the brick then we can make the brick curved by moving the extrude point to where ever we want it to go. I'm sorry if you are a little confused but it is really hard to describe. I Have included some concept art of what a extrude tool could do for roblox.
If anyone has any other ideas i would be happy to hear them. :)
concept art 1 -> http://www.roblox.com/ent-ArcFaceSet-Resize-item?id=173986573
Concept art 2 -> http://www.roblox.com/7-item?id=173986389
Concept art 3 -> http://www.roblox.com/Edges-item?id=173986300