There is no best kernel, the real is answer is to try them all and see what kernel you think suits your usage. And such questions are prohibited to be asked according to rules because this is the same as asking on which ROM is the best. Your thread will be closed eventually so don't expect any support.
Device: Samsung Galaxy SIII GT-I9300
ROM: Stock (XXEMJ2 Odexed 4.1.2 Jellybean)
Kernel: Boeffla Kernel 4.0
Recovery: PhilZ Touch 6.00.8
Mods: Jkay Deluxe 14.95 & ViPER4Android Audio Effects
Theme: Dream Themes 1.9 by orangerot