First time visiting Japan with my friend

Hi I'm planning to visit Japan with my friend for 12 days (6 days in Osaka and 6 days in Tokyo) is the Rail Pass will be less cost than individual tickets?

I'm planning to use the train between KIX airport to Namba station where I will stay:
1 day to visit Shinsaibashi and return to Namba
2 days to Kyoto (go and back to Osaka everyday)
1 day to Universal City Station (go and back to Osaka same day)
1 day to Shin-Imamiya Station Shin-Imamiya Station
travel by train from Osaka (Namba station) to Tokyo (Shinjuku Station)

2 days in Disneyland from (Shinjuku Station and return)
1 day Akihabara Station from (Shinjuku Station and return)
1 day Ueno Station from (Shinjuku Station and return)
Travelling to Tokyo Haneda Airport from Shinjuku Station.

Thanks,
AD