Upgrading from my Sony Xperia T - what shall I get?

[rocketretroapps]

So I have been pretty happy with my aging Sony Xperia T and was thinking of getting the new Z3. But Sony seem to be adding new phones every other week.

This is where I am reaching out for some advice. I use my phone mostly to play games, normal social media stuff and phone/txt and lots of music, so ideally want something that has a good battery life a decent bit of storage. Not too fussed on brands, and I am on o2 right now.

Thanks in advance