As you guys know, I finished school a few weeks ago and passed all my final exams (Matura or Abitur how it's called in Switzerland/Germany). I initially planned on doing a gap year to figure out my life, work and travel but things turned out to be different and I applied for university starting in September. I don't have any specific plans for summer yet, everything will be spontaneous. All I can say is that if I want to go somewhere, go on vacation or do a trip to the other side of the world it'll be during semester break, which is usually around 2 months long. As you guys know I'm already 21 years old and I want to start working and finish my training as soon as possible. I don't want to get my master's degree at 30... 

Anyways, to the main subject of this post: a bag for university. I want to get a bag for university. Until now I've carried a Longchamp bag so school just because I didn't want to walk around with a designer bag at school, I think that's not necessary. But I now want to invest in one for university. University is different than school and I know I'm not going to throw around my bag in the lecture hall like I did at school :) I found the ones below but I can't really decide (I need help). I want a bag that can hold weight and fits a lot inside. A Louis Vuitton neverfull in Epi leather is also an option by the way.

What bag do you use for school/uni? Which ones from below would you get?