zabuza didn't take naruto and Sasuke seriously .Don't rank people by their ninja rank, Naruto is a genin.
I think your mad that Zabuza lost to two genin and Kakashi withiut mangekyou.
Also Kiba is still alive, Zabuza isn't.
You're butthurt
If zabuza fought them seriously then naruto and Sasuke would be dead in 1 panel.
He made clone just to play with them.
Kakashi was zabuza's real concern.
First fight:
look what zabuza did to kakashi
You must be registered for see images
Kakashi couldn't move from bed more than week because of zabuza
You must be registered for see images
If naruto and Sasuke didn't help kakashi here then kakashi will be dead for sure
You must be registered for see images
2nd fight:
haku protected zabuza and sharinghan failed to defeat zabuza so he used summoning jutsu .
Kakashi suppose to be dead but he won because zabuza was deep hurt once he saw haku died in front of his eyes.
You must be registered for see images
Kakashi already admitted that
You must be registered for see images
Edo fight:
Zabuza lost when he was edo because he wasn't at his full power either full potential and he was controlled by idiot who can't use zabuza at his full potential.
Finally kakashi was lucky and technically, zabuza soloed kakashi