It is up to you and what you're into - but I love Hakone and would highly recommend it :)

Is there any place in Tokyo or Hakone that we can buy
cheap WCCF or Sanguo arcade playing cards ?

Also any place that have SEGA arcades games ?

:o

I am not sure but try Akihabara in Tokyo. It is the big electronic town in Tokyo full of nerds and the like.

Unless you are a big Disney fan, I wouldn't waste one of only six days there. It's basically like travelling to Orlando, FL.

I thought of going to Disneyland & Sea for the 1st 2 days together
with Universal Studios.....before travelling to Kanagawa & Hakone...

:o

Here is the Railroad map of whole Japan.

http://www.japanrailpass.net/images/map_en.pdf

And here is the Railroad map around Tokyo including subway.

http://www.meik.jp/2rosenzu/tokyo_route_map.html

For Kyoto,
http://www.meik.jp/2rosenzu/06_kyoto_roseneng.html

Regards,

RK

Lake Kawaguchi is a great place to view Mt Fuji. At least that was my experience while I was there. However, it was during the winter season and hence like what uktokyoite said, it's much clearer then.:)
anyway, be awed by its beauty..:)