It's fun to compare difficulty ratings of civs in RFC. So, I've made an image for a better representation :) Here it is.

EDIT: OLD FILE DELETED

thank you, I will use this table for the strategy guide! I think you should also add the UU column.
And correct "Sacriface" to "Sacrifice" ;)

Very nice indeed!

Ok, updated :)

You know, taking a look at the table, it might make sense to make some changes to the UUs. I'm especially looking at Inca, Mali, Mongol, and Aztec.

I know that Mali was a medieval empire with castles and everything. Perhaps Skirmishers should be a long bow unit.

Same with Mongols. I think the Keshiks might be best as Knights. (... wait, is it already?)

(I'm not sure about Aztec and Inca... come to think about it.)