Info 2 [Q] [CM11.0] LegacyXperia OR CarbonRom KitKat For Xperia Neo V

Hello
I recently upgrade my Xperia Neo V To KitKat 4.4.2
I've used this ROM [CM11.0] LegacyXperia here
http://forum.xda-developers.com/show....php?t=2545357
But I've also tested the Carbon ROM here
http://forum.xda-developers.com/show....php?t=2570921
And , now I want to know the best ROM for my Xperia Neo V
because every ROM have a size
for example : The Carbon ROM smaller than [CM11.0] LegacyXperia
So , I want your suggestions for my device
Thanks