The one that Naruto loves most

[B00m]

His parents obviously.

Besides that I'd say Sasuke, they are rivals, that's love. Plus he's been chasing/following his ass forever.
Naruto might even be more obsessive than Madara about Hashirama.

 

[Nous]

1. Minato/Kushina/Jiraiya
2. Sasuke/Iruka/Kakashi/Sakura
3. Hinata/Gaara
4. Shikamaru/Choji/Ino/Kiba/Lee/Neji/Konohamaru
5. Tenten/Shino [Have Naruto and Tenten even talked to each other? o.o

Something like that. Possible inclusions could be Nagato, Konan or Itachi.