ratbastid

"East" and "West" are largely political and cultural distinctions. The geography has little to do with it. Note, also, that distinguishing eastern and western countries is not exactly politically correct these days--it smacks of colonialism and a lack of a sense of multiculturalism, and it doesn't include the "south": Africa and South America. Referring to "third world" countries provokes the same sort of reaction among contemporary social thinkers. The preferred distinction is Developed vs Developing Countries.

Nonetheless, from your list:

Russia is divided. The western part is west, the extreme eastern part is east.
China is east.
Australia is west.
Africa doesn't factor into the east-west equasion.
Eastern Europe is West
India is East
South America largely doesn't factor either.