What is the difference between the three Ammo to-go types?

[mobocaster]

Here:

Difference between Ammo world, summer, and standard?

Hey guys just wondering what the difference between The World, Summer, and Standard editions of Ammo were? Is it just the scent? Which one is better in your opinion? Also which spray of a314 do you guys like? 1.32a or 1.32b? Major differences?