[SceptileMaster]

Even though it's in romaji I'll help you out (for some reason it takes me longer to comprehend Japanese written in romaji, maybe because I'm used to seeing the shape of sentences in Japanese). As a future tip, you'll have a lot better a chance of getting help here if you at least use hiragana. I will be responding with hiragana for you. It also evens out some flaws such as: hoo -> ほう.

Comparisons seem right. It doesn't really matter where より comes as far as I know. Someone correct me if I'm wrong but you can use both of these sentences to mean 'Tōkyō is bigger than Ōsaka'.

東京の方が大阪より大きいです。
とうきょう の ほう が おおさか より おおきい です。

大阪より東京の方が大きいです。
おおさか より とうきょう の ほう が おおきい です。

I've only ever seen の中で（の なか で）after lists of three items before, in this kind of fashion.

山田さんと大塚さんと夏川さんの中で、だれが一番背が 高いですか。
やまださん と おおつかさん と なつかわさん の なか で、だれ が いちばん せ が たかい です か。
Out of Yamada, Ōtsuka and Natsukawa who is the tallest?

Hope that helps.