Shit I guess I'll start off a template so it's easy to see what the winning components are. Will reply when I have a little more time and thought.

Handguard:
Reason:

Sights:
Reason:

Optic:
Reason:

Grip:
Reason:

Stock:
Reason:

Barrel including length:
Reason:

LPK/Trigger:
Reason:

Buffer:
Reason:

BCG:
Upper Rec:

Reason:
Lower Rec:
Reason:

Magazine:
Reason:

Lights/lasers/etc:
Reason:

Charging Handle:
Reason:

Flash Hider/Comp:
Reason:

Misc Stuff rail covers etc:
Reason: