Manga and Influences (About Fairy Tail)

Well, I just happened to read Fairy Tail recently. And I'm still reading it. (It's ongoing)
I'm just too surprised to find the extreme resemblance between some characters here, in Fairy Tail and other Manga. I'm going to list them all.

Natsu Dragonil = Monkey D. Luffy (One Piece)
Lucy = Ruby Cresent (666 Satan)
Master Markov = Third Hokage (Naruto)
Mistgun = Hatake Kakashi (Naruto)
Loki = Sanji (One Piece)

And Amazingly

Gazille = Vegeta (Dragonball Z)


Can you make who's who?