14 day trip

Hellos everyone! Thanks for taking the time to read through this!

Soo.. I am from Singapore and I will be going on a 14 days trip to Japan. Landing at Narita
I will be purchasing a 7 day JR pass
I'm thinking whether I should head straight from

Narita -- Hiroshima -- Kyoto -- Osaka -- Tokyo
OR Narita -- Tokyo -- Osaka -- Kyoto --Hiroshima -- Tokyo

I have never been to Japan before so it is quite hard to plan all these by myself as I'm not very sure of the area.
Right now, I'm having issues on how to go about going to all these places.
Should I head straight from Narita Airport
Basically these are the places I wish to visit.

Tokyo (Estimate stay for 5-6 days)

Kyoto (Estimate 2 days?)

Osaka (Estimate 3 days?)
-Universal Studios Japan

Hiroshima (2 days?)
-Bunny Island (Okunoshima) -Miyajima (Itsukushima)

If you guys have any MUST GO places in any of these areas please let me know! Cause I am not familiar with them xD

Once again thank you for taking your time to read and help me with this. Really appreciate any help that you can give! =)