My List:
1.Goku - Goku is on his level, and no other amine character ever even compare to him. Goku was a legendary worrier and a saint.
2.Ichigo Kurosaki- With his horned mask and complete hollow form, he can most likly beat Naruto,Luffy, or inuyasha.
3.Straw Hat Luffy- I've been with this guy from the beginning, luffy has the hart and will to win no matter what.
4. Naruto- this guy might also be able to beat Luffy mabey with fusion rasengan, but non the less, he can bleeps shit up.
5.Inuyasha- This guy is also a great fighter, close to the end of the manga, he got a bunch of new crazy moves.

In the end, I would say the Inuyasha, Luffy, Ichigo, and Naruto, are all on the same level, and are all great fighters. It would be great to see a tournament with these guys. But in the end, Goku is on a level of his own, far beyond any character ever created.