What is the best MacBook Pro for me? (Budget = 1500$)

Hello guys, I am looking forward for buying a new MacBook Pro. But I don't know which one. I want a 13 inch model that can run very good. In 2010 I bought a MacBook White and I should probably say that it was worth every penny I spent. I loved it so much but this year the trackpad would not move, lagging is an issue but it still works fine now. I want to buy a new MacBook Pro that is good.

I will use it for the following :

- Microsoft Word / google docs

- Photoshop

- Game programming

- Gaming (League of Legends, Football Manager 2014/15/16/17)

- Programming

- Researching ( EXTREMELY IMPORTANT)

- Homework

- And personal use (Facebook, and surfing the web)

My budget is 1500$, okease answer as fast as you can!!