a very large proportion of independent voters using the nickname "Arkabee" on phorums consistently vote for the least icky and evil choices possible.
I think we naturally end up with a two party system because that is the status quo, and all the people who spent their ENTIRE lives learning the rules so they can take advantage of them get rilly, rilly pissed once they are able to take advantage of the rules if you try and change the rules.
witness:
the city i live in was "redistricted" after last election.
what that means, is that PORTIONS of my city will now vote on DIFFERENT state representatives to represent the city and area at the state.
here is a crude picture. image that blob as my city's city limits.
http://www.themisc.com/~kevbob/district.jpgnotice the two colors?
it use to be one color, we were all in the same district.
however, 2 precincts, the red ones, were "re-districted".
why? not sure.
however, LAST ELECTION, the current INCUMBENT lost the two red precincts....
NOW, he doesn't have to worry about those precincts, because those people can't vote in his election.