Honestly. 4.3 is my favorite version of Android (jelly bean at least). i have sticked Cyanogenmod 10.2.1 on my Galaxy tab 2 10.1/T989 Galaxy s2/i897 Captivate and they are probably the smoothest version i have played around with. just recently upgraded to a Moto X that came with 4.4 and its not that bad i guess on a stock moto or nexus device, but i cant stand Cyanogenmod 11 or Kit kat roms these days.
"Oh, you can't help that,' said the Cat: 'we're all mad here. I'm mad. You're mad.'
"How do you know I'm mad?' said Alice.
"You must be,' said the Cat, 'or you wouldn't have come here."
Motorola Moto X
Stock KitKat (4.4.2) XT1060
Samsung Galaxy Tab 2 10.1
Rom: Cyanogemod 11 (4.4.4) P5113
Asus Nexus 7
Stock (4.4.2) Broken Digitizer, any recommendations on amazon?
Nikon Coolpix s800c
Stock Gingerbread (2.3.3)