This sunday! hope the sub come out quickly after the premiere
I watched 5 episode of Reconguista in G but still unable to bear with the storyline 

I wonder will there be more Gundam than just Barbatos, since the summary say it's one of 72 Unit from previous calamity wars, that means there could be more

NG
+ easier to build
- see MG's "+"s

MG
+ color separation is better than NG (Most of the parts are molded in the correct colors) This won't matter if you are painting it.
+ proportions are normally better compared to NG
+ more details (panel lines, stickers)
- more expensive
- takes longer time to build.

Though if this is your first time building a Gundam, I guess you should start with a NG. A NG can look as good as a MG with enough effort put into it.

Okay I'll try...