While I understand your frustration Sept I think your method is not a good one
Imagine that all teams put the same three nations top believing these to be the best. But they ALL go to one team simply because he ranked them differently. How is that fair or skillful yet would have a huge impact on the game. All nations were not made equal in Dom 3
Plus it may let very powerful nations go 'cheap' later on, likewise if you are 'thinking the same' as another team you may both end up with just your lower ranked choices. So this method ends up making the rankings/voting very luck dominated.
It would be marginally better if you could pick the same nation multiple times (so you could put Himmon in all the top 5 slots if you wanted, more or less guaranteeing you get it but at the cost of most of the other top nations being taken by others before your second pick arrives).
It also does not really allow any meaningful team construction. By which I mean you may want a Researcher nation, a recruitable Thug nation and a sneaky raider nation. By your method it's much harder to bid for this as you won't know whether you will get your first picks or not. So you may end up with all Sneaky Raiders because the others were all tied.
Both of CPs methods were better IMHO. As both allowed you to use your bids to construct a team. They both allowed you much more control over what you got.
I appreciate they are slightly more complex and would take longer. But the second CP method (the ABCD teams) is pretty quick once the teams are decided. And we could use your method to select which letter each team gets
I suppose it doesn't matter that much, it's just that your method (which would be OK if this were a free for all none team game) seems very bad for team game.