China+UK is better than UK+ANZAC. Giving only UK to a player can make that player exit from the game after India is lost and that's not good, give him at least a chance of holding one of two countries
Another good stuff is proximity: China+India player will not need move from one side to other of the table in a FTF. I suggest this setup of players:
- North side of the table: Japan player
- West: UK+China
- South: ANZAC
- East: USA
In case of 5 players, you need a Playstation near of the table when minor powers start to fall
