Rankings in general

[Kal]

There has been a lot of debate about the round 20 proposed rankings changes.

So this is a general question on rankings.

Should there be alliance rankings?
Should there be galaxy rankings?
Should there be planet rankings?
Should there be cluster rankings?

Should all rankings be the same i.e. by score, should some be done differently?

What should be the focus of the game? Before alliances were brought inside the game the focus was much more on individual planets and galaxies and thoose alliances that had the most top planets/galaxies were the winners. Could something like that work with alliances in game?