If you feel like going down the American heavy line the T29 is an OP beast at T7. It can hold its own in T9 matches it you can stay hull down, and will dominate T7 matches if you play smart. I'm about 80K XP from the T32 and am debating even moving on. The only reason I've move on is for the T110E5 if I decide to join a clan and start clan wars.
I can't start playing clan wars without a T10, and can't be bothered to grind a T10 unless I can use it in clan wars, so I don't know what to do. I only have 1K matches played, but am an okay player so far. If I could get drafted into the bottom of a clan and learn from better players, I think I could learn a lot. So far I only solo pub and have platooned a few times with some members of CRABS.
I generally only solo pub, but if you guys see me on and want to platoon, I'm currently working on my T29 at T7 and SU85B at T4 (soon to be SU85 at T5). I'm not very good, but am trying to learn. Send me a message with something along the lines of "From OCN" or something so I know who you are, and then the details to your TS server if you have one. I need to set one up one of these days.