Dude you have to give it more than a few hours to tell. It usually takes a day or so to settle down. Turning off spotlight does nothing for battery BTW. I am leaning toward better battery than 8.1.1 but again need to really test several days with various usage types. Also think about it, if iOS was really causing an hour less battery after every update dont you think there would be mass media attention and mutiny of Apple? There is something specific to your config or device causing all your issues. Also per Apples spec:
1hr/12hr use=.0833 used for wifi. So 100%-8.33%= 91.6% should be remaining. You stated you used 10% so pretty close to max spec it would appear. That is not taking into any account standby or anything else you may have done in that 1 hr of use. This is from the 50,000 ft level assuming no phone calls or music, etc. Basically the spec says wifi should use .0833 per hr. (1/12) because 12 hrs is the max usage for wifi according to spec. If you want to add in any standby time in, then 1/384 (max standby is 384) so .02% per hr should be expected. These numbers are based on max spec from Apple in ideal conditions and all are stated as "
up to x hrs"
My yesterday results below for iP6 on 8.1.3:
View attachment 527622