Default [Q] What stock apps are safe to "turn off" in the 4.3 stock update?

I'm stock, updated to 4.3 and like so many others, my battery life dropped about 30% from 4.1.2. According to GSAM, Android System (12.4%) and Kernel (7.3%) are the highest resource users.

I'm wondering what I could "turn off" that might help with battery - like:

Game Hub
Group Play
Media Hub
Play Movies
Play Newsstand
Samsung Apps
Samsung Link
Sprint Worldwide
Sprint Zone
VPN Client