I started watching the videos on NGUI 3.6 on youtube (excellent so far) and there was a large bit about using Unity Sprites instead of NGUI Sprites, and how you could almost get the same draw calls and how to use the automatic atlas builder, etc.
So, I am wondering... what are the benefits of using Unity Sprites with NGUI Widgets?
Are they faster?
They don't seem to be less complex as you stated in the vid the draw calls would be harder to get down to the same with NGUI.
Do they use less triangles or something?
Handles in memory better or some such thing?
Is the atlas builder better, more efficient, handles larger sprite sheets more reliably... or something?
Do they consume less memory?
Anything else?
Will this 'ease' the transition over to Unity GUI?
I like the idea of options. Is there a good reason why I shouldn't change all my NGUI Sprites over to Unity Sprites, besides that it'd take a bunch of time?