[smsm42]

I have lived in a country wil multi-party election system. I am not really sure you'd prefer it to US system if you saw it in action. In multi-party system, one of the "big" wins the elections and then has to bargain with smaller parties to create a ruling coalition. This bargaining usually a completely disgusting process of political horse-trading, where narrow-issue parties wield wildly unproportional influence and extract huge concessions due to their political position. This also happens sometimes on narrow votes in US system, but while in US this is more of an exception, in multi-party state this is the only way to go. What is called "pork barrel spending" in US and seen as something that should be reduced if not eliminated completely in US is the only way to spend in a good multi-party system, because without buying off smaller parties (which are not shy of outright extortion because they have enough votes to hold small but key position and do not fear to look bad because they don't have to woo independents) no law and no budget can ever pass.

I'm not saying any of the systems is best or worst in each case, but multi-party system has as many, if not more, problems than two-party system.