Help with working out what I should be eating.

Alright, I'll get straight into it. I'm 175cm tall, and weigh 96.2kg. So far I've lost 40kg over about 6 months.

Tape measure wise, I'm sitting at about 32% body fat with the military calculator, and for some reason 25.7 with the Covert one (???)

Up until this very moment, I've had my daily intake at 1500cal (almost 2lbs a week), and I eat back some of my exercises. I want to lose about 17kg to get under the 80kg mark, so I've started to look into the best possible way to actually lose it, and keep it off.

After reading about BMR/TDEE, etc, I've decided that I want to try this whole eating at least my BMR every day and seeing what I lose that way. If you look back through my diaries, I'm under nearly every single day, and I think it's starting to slow my weight loss down, and since I started exercising later at night, and have more time, I'm burning over 1000 calories every time I go (and this is coming from my Polar FT7 HRM, which I've got my weight as slightly lower on) which is why I'm making this post.

Working out my BMR based on HB method it's 2121, Katch method at 32% is 1843 and Katch at 26 is 1970.

Averaged out, it works out to be about about 1978 as a BMR. Now when it comes to TDEE, I don't know whether I should be multiplying my BMR by 1.55 or 1.725.

I get to the gym about 4 times a week, and like I mentioned earlier, I burn a lot of calories there, usually spending a couple of hours a night. I'm currently doing 5x5 stronglifts, as well as about an hour and fifteen, to an hour and a half of cardio.
Over the period of a week I burn about 5000 calories.

So based on that, and the amount of calories I actually burn, should I put it at 1.725 or 1.5?

My diary is fully opening for critiquing. I've always crash dieted in the past, this is the first time i've done it the healthy way, and actually involved exercise.

I don't want to just 'eat back my calories' on gym days, I wanna just average it out, so I know what I'm eating, and don't have to make excuses to myself if I go over one day, because I'll make it up the next day.