extremely said:

I've always like the single-transferable vote system

The STV system can be used for trading votes among different factions. This may not be a problem in full-scale general election but I know anecdotically about a case where one large country's candidates wondered what hit them (they didn't get any people on the board, because the other countries traded votes).

They know how to play the game now.

A good electoral system must also be easy to grasp.

/jeorgen