Psyckosama said:
5. Lets have it so when NAruto gets back from two years of training he's learned nothing of value, while Sasuke's basically become a demi-god.
...
- improving his chakra control
- tactics (using clones to maneuver about in midair is just one of the things we see)
- taijutsu
- hiding weapons (the fuma shuriken sealed within a scroll during the Gaara rescue arc, and the hidden kunai-on-a-rope in his sleeve during Sai's first appearance)
- advanced skills on the Rasengan (Odama Rasengan)
- proofreading and editing (had to read over Jiraiya's latest drafts)
- advanced perverted techniques (well, not really, but you can say reading Jiraiya's stuff gave him a few ideas)
- drawing upon the nine-tails chakra (which is a mixed bag -- anything past three tails is just too dangerous)
- apparently a hidden unfinished technique of Minato's
- seal lore (which could easily come back to the nine-tails chakra and the hidden technique)
- breaking genjutsu
... Please don't measure Naruto's learning rate at Sasuke's level. There's no point to it.