I almost always use my mic :S
We should be ganking in scrims. In practice that doesn't happen much.
whats ganking?
I agree. In general, I think going for the bottom turrets would usually be better. They're usually left more open, and I believe on at least two maps they offer a better means of escape. If you attack from above, it's easier to get trapped between the final turret and the bottom one.
on jungle I agree. On gravity shaft, going for South turret makes it incredibly easy for a lonestar to drop from factory and bull you in. Like honestly there's nothing you can do it about it save for having someone hang out at factory to call it out if its about to happen, and that lessens your strength at the turret by a 3rd.
On worm, theres platforms to drop down from literally right next to the north turrets as well as the jump boosts at top platform. You have the jump boosts close to South turret, but that just takes you to North turret anyways.