I didn't vote (I'm not 18 yet--and I probably will not be voting in 2008 either because birthday is in December) so I can complain. Gore and Kerry were a bit worse than Bush. Bush's administration could have been different if not for 9/11/01, but that happened and we will never know what would have happened if Gore or Kerry were in office for it. I don't particularly like Bush, but I know one thing--he was the lesser of the two electable evils. Third parties are just for stealing votes--the last time a third party had a serious chance at getting the White House was back at the start of the 20th Century with the Bull Moose (Progressive) party--they captured more vote than the Republican party the separated from by a significant amount. Since then, iirc, there's not been a third party that has made a serious run for the presidency.
Oh, and if I was voting for an American party, it would be a Democratic Socialist party. People hate me because I'm not a Democrat or Republican--I don't think socialism should happen like it's been seen (USSR and Cuba are the big two examples) and it doesn't work in economies based on agriculture (again, USSR and Cuba). The best way a Socialist state can arise is in an industrialized nation. I won't vote for a Democratic Socialist canidate as none are reliable--they seem to want to turn the USA into a USSR-lookalike.