In my opinion, the biggest problem with current music (heck, even through most of the '90's) is that there is absolutely nothing FRESH about it.
There are basically about 3 types of mainstream music anymore:
1. Earnest guitar noise with bland lyrics droned by androgynously clad young white men, who feel the need to pontificate about absolutely nothing.
2. R&B songs that are clones of every other R&B song in existence. The music has no discernable beat and almost no dicipherable lyrics except for the random bit of pleading for sex. This kind of music has been touted as sexual accompanionment, but is the perfect device to promote abstinance, as the parties involved fall into a coma.
3. Young women who were born approximately 1998, who are our great spiritual leaders because they can tell us all that "Life's like this." I don't know what I'd do without Avril.