Nexus 7 vs iPad mini (vs Nexus 7 2013 vs iPad mini retina?)

Soooo I really don't know which one to pick between the two.

Things to bear in mind:

  • I do not own a laptop/PC/Mac; the tablet will be my main device to do stuff
  • I like to watch anime/tv shows/porn via streaming
  • I browse the web a LOT
  • I'd rather buy a tablet now
I never had a mobile device with a resolution higher than the iPad mini's, so do you think its screen will bother me anyway? (I've read that on some websites when compared to the Nexus 7).
Is it really worth waiting for the new Nexus 7? Do you think the new iPad mini with retina will cost the same as the current iPad mini?