I don't know... It seems like I'm the only one, but I think the audio portal voting system works really well. Unlike in the flash portal, however, exposure depends largely on the number of votes as opposed to your actual score. The more votes you have, the more resistant you are to zero bombers, and thus the longer you are able hang out on the first few pages.
The current system is good for two reasons:
1. New content can float easily but is cycled quickly
2. Better content that has had more exposure (ie, more views/more votes) will stay on the front few pages for longer
3. Users who aren't the best artists and who are serious about getting feedback are able to push their own submissions up to the front and eventually can gain substantial weight and exposure.
4. This system COUNTS on zero bombers and five rocketers, meaning the jerks who are trying to cheat the system are actually the ones making it work.
We go under the assumption, in this system, that after a week or so a song with 150 votes is better than a song with 23 votes. And as far as I can tell this is an accurate gauge of the quality of a song.
But a lot of people have trouble coping with this. They say "You shouldn't five rocket your own stuff all the time because it's obviously not perfect" and "Zero bombers are just disrespectful and nobody should zero bomb an average or quality piece of work".
I disagree. You should do both of these things. Of course not all the time, but without zero bombers we'd get no content cycling.
Yes, if it were a perfect world and everyone voted fairly then yes, zero bombing isn't good. If we get by the fact that the world isn't perfect and realize that people will bomb and rocket, we can see that this system works out pretty well.