20 Dec - Arrived in Narita airport in afternoon
21 Dec - Tokyo
22 Dec - Day Trip to Mt Fuji
23 Dec - Disneyland
24 Dec - Tokyo
25 Dec - Tokyo to Kyoto
26 Dec - Kyoto
27 Dec - Kyoto to Osaka
28 Dec - Osaka
29 Dec - Leaving Osaka (Itami airport) in afternoon
With the itinerary planned above, should I get a 7-days JR pass or just buy regular tickets?
Which is more budget?