Good points. The sensor for me is the basic building block for all other components, features, and accessories. I would think low-light/high ISO is the most important part especially for wildlife and sports. Arguably more focus points does not insure a better system, but I do agree a good AF system is as fundamental for good photographing as the sensor. I agree lenses can be critical for both uses, not more important than the aforementioned. While a few exceptions for lenses could be argued as what is "best" for a particular use, I think between the two major manufacturers and to a lesser degree some third party makers, lenses are very comparable in my opinion.

If not keeping your 7D is a possibility, than I would think the 750 is the best choice to do both with. If memory serves correctly the DxOMark sensor score for sports/low-light is about 30% greater than the III. I am admittedly a bit OCD on the low light-high ISO scores right now, but also admit I am looking for best price for the 750 after looking at the 810, the 7D II and several others as the 750 kept rising to the top for sensor, features, and most of all (to me) value. A few retailers have deeply discounted the Pentax K-5, K-5s, and less so on the K-3, which has a selective anti-alias filter feature that is a bit intriguing. I have a few Pentax lenses, but would need a couple of more. So many choices, so little money. lol

That's not "The Catch." I remember "The Catch." From Wikipedia:

The Catch refers to the winning touchdown reception by Dwight Clark off a Joe Montana pass in the January 10, 1982, NFC Championship Game between the Dallas Cowboys and San Francisco 49ers. The Catch is widely regarded as one of the most memorable events in NFL history. The game represented the end of Dallas' domination in the NFC since the conference's inception in 1970, and the beginning of San Francisco's rise as both an NFC and Super Bowl power in the 1980s.

(From a 49ers fan)

STOP, in the naaaame of love, you're gonna breaaaaak my heart............
The power of suggestion, it's working!! :lol:
Sorry Charlie....I mean, Cholly!
Hey, I've NEVER talked about low light, because it really doesn't mean anything to me. Sure, more is better, it always will be, it CAN'T be worse, but I know how to handle low light, no matter WHAT my limits are. I have lots of shots in low-light/dark and they rarely have noise.
There will ALWAYS be shots that you can't get, you know, the ones that would-have-been the best shot you have ever taken but it got away?!! :lol:
For those that think that a shot is anything other than composition, it's only because they don't know anything about composition, which is to know nothing of photography.
It's more important to get shots that look good, not shots that look good!!? :shock: :lol: :shock:

Ask not what your camera can do for you, but what you can do with your camera!! :lol: :lol: :lol: :lol: :lol:

SS