Well it seems like you know what you want.
You should be comparing and contrasting different brands that make the guns you want.
TM makes great g36s and mp5s.
For armalites, I'm not sure.
TM makes a mean 1911.
Just have a look at different brands, YouTube reviews, etc.
Airsoftreports on YouTube is good at technical reviews.
Are you going to be outdoors-ing, CQB-ing, or a mix?
Detail your needs for the gun, rather then models if you want more help =)
As you seem to have the gun research down pat.
God is a /b/tard.