Hello, newbie here. I have a T2i (or Kiss X4 here in my part of the world) and have 3 lenses an 18-135 IS, 18-55 IS (don't use anymore) and 85mm 1.8. Been thinking of getting a short prime around 20-30mm range or a 28-75 or 24-70 (I can only afford Tamron, it costs $1200 new here). I don't have any plans of going FF soon, maybe never. Any suggestions given my current set-up should I go for a short prime instead of 2X-70X zoom? I like shooting people, group shots and sometimes indoor sports. Also had a 55-250 before but hardly used it so I sold it. I also have a Nissin Di622 II flash. Thanks!
(I may move to the either 60d or 7d successor)
Here's my: 

