A good way to get some body out of the snare is compressing it by itself. From what I can tell based off what I hear in your third mix, it sounds like you're getting a decent snare track. Maybe a little too much top head, but it's got some pop to it, which is good. I think it's better to have too much attack than not enough. Anyway, the EQ I mentioned in my sticky is very general. You should really get in there with a para EQ and find the good and bad frequencies and act accordingly. A snare has a lot of tones going on. More than most people might think. Go out into the interwebs and find the Antress Modern Compressor. It's free and it's got a few snare presets that work really well with some tweaking. I use it on my snare and I really like it. I know presets are taboo, but it's just a starting point. You're gonna fine tune it yourself. It does a good job of bringing out the body of a snare. EQ first, then compress the snare, and if you did it right, it's gonna come to life. Same with the kick. EQ and compress to taste. Leave the overheads alone. Bus em all together and fine tune the kit as a whole. I think you're pretty close to getting usable drum sounds. Your toms and overheads sound pretty good to me. Just get the kick and snare sounding awesome and you'll be in good shape to tackle the guitars next. Killer sounding drums are the backbone to a good mix. Nothing else matters until the drums sound good.