My issue with Samsung 4,3 based roms is this:
Badass battery monitor always shows kernel on top of my battery usage charts. Normally on 4.1.2 based roms the kernel would run for about 12-15 minutes over the course of battery being used form 100 to about 10 % but on 4.3 on the same usage kernel is runnning for close to an hour. Also Android OS always tops my battery drainage charts irrespective of what kernel plus rom I use.
With the same set of apps I had pretty good battery life on 4.1.2 but not so good on 4.3.
BBS also does not show any weird behavior.
Any pointers as to how I can prevent kernel usage from being so high?