The best radio stations to me today, the ones that keep me compelled, are ones that mix freely from all eras (including this one) and genres. Try BBC Radio 6 Music, or WPRB (from Princeton University), Soho Radio.

From what I hear on these stations, where DJs are expected to fearlessly put on whatever they like, it seems, the music of today sounds just as good as from any other era, but for me it's always been about discovery, and sometimes that includes being a little uncomfortable, I like to teach my mind a new groove every once in a while and it has been known to resist. It happens to all of us, I'm afraid, more and more as we get older.

That said, I can comfortably be against some music industry tendencies, there is no "pop utopia" in the past.
Last decade it's been software tools like autotune; in the 90s the "volume wars" began and frankly, most USA rock sounds too similar, all trying to channel Led Zep and Black Sabbath through a punkish filter; in the 80s many bands were overproduced half to death, submerged in sonic synthetic fluff, all the new studio toys abused, layer upon layer upon layer.

In the proper hands, these technologies can help a piece of music shine brighter, but in the hands of producers following the bandwagon - and that's always been the majority of 'em - everything ends up sounding the same, like neon ads all around you.