Between the corbon 135 gr. and 165 gr. JHP loads, I'd have to see gelatin test results to tell you which one I like most. My concern is that the 135 gr. cartridge is an underpenetrator, but it's velocity and energy are getting into the .357 magnum zone. My hunch is that the Sierra JHP that the 135 gr. load utilizes will throw off serious secondary fragments and because of that have a smaller expanded diameter that allows sufficient penetration. If the 135 grainer penetrates well, then it would be my choice. A phone call, or e-mail to Corbon would likely give you gel penetration results for the 135 and 165 gr. loads. I like 12" - 14" penetration but would live with a little less, but certainly not under 10".
FWIW, I would not use either load for law enforcement, or for a dedicated car gun because they do not use a bonded bullet.
I would also like to add that switching loads in handguns based on whether one is inside, or outside, or because of hot weather/cold weather is a complete waste of time IMO.