Okay, I'll weigh in here on just a couple of points.
First, jpeg image quality is adjustable in camera. Spend 15 minutes with your $1000 purchase and you'll quickly be able to set either camera to look however you like. My K100D had jpegs that drew rave reviews. My K10D was knocked for having poor jpegs. Yet in 5 minutes I was able to adjust the settings in camera (boosting sharpness and saturation
to my tastes) so that the K10D now looked just like the K100D. You can do the same with the Rebel.
Secondly, exposure is also adjustable, but mainly how Pentax addresses exposure and how Canon addresses exposure are fundamentally different. Canon doesn't "protect the highlights", meaning you're more prone to lose detail in ("blow out") the highlights. Pentax protects the highlights, but may lose a little detail in the shadows. Both methods are equally valid, and if you shoot raw (and you definitely should), both methods are pretty much moot.
Finally, when I used AA's in my K100D, I regularly got over 500 shots on a standard set of NiMH's. When hybrids (like the eneloops) came along, I got maybe a little more, but the batteries didn't self-discharge nearly as bad, meaning they'll sit with a usable charge for weeks instead of days. Also, if I was travelling, I'd just go with a set of non-rechargable lithium cells and I'd get well over 1000 shots, which usually covered my travel. Also, a second set in my luggage was much lighter and less bulky that the charger for the NiMH's.
To me, the big advantage Pentax has is the in-body shake reduction. It really does work, and it's on every lens you attach, whether it's a brand new lens, or a 40 year old used lens. Canon and Nikon users are quick to point out that shake reduction isn't that necessary in shorter focal lengths, which is generally true. However, I wonder how many hand held, free standing (non-braced) shots they've taken at 18mm and
1.5 seconds?
I think you've answered your question since you like how the K200D feels. That's a big plus. If you like holding and operating the camera, you'll use it more and figure out how to make it take the shots you want.