I'm in a cover band so I get to pick whatever is fun to me.
I don't have the gift for writing music and haven't attempted to develope those skills but it's always been my opinion that a true artist makes the music they want to hear/play and not what they think will be commercially successful.
If you are 100% into what you're doing others will "get it" too. IMHO.
My wife and I just completed a three hour drive and listened to the 70s channel on Sirius. This is probably an old guy remark but it seems to me what’s missing today is originality and musicianship. Music was better and more fun when everyone wasn’t following the latest trend and everything wasn’t fixed, perfect and over-produced. The Guess Who, James Taylor, Boston, The Cars, Chic, Marvin Gaye and the like all in the same decade. There was a lot of great guitar playing across the board.
I am in the camp that there is lots of great music now. However, back in the day, we that record companies and radio stations telling us what to listen to. Now, anyone can record something and throw it out into the world. The great music is there, it just way harder to find because the there is no filter of record companies and radio stations anymore. It actually takes effort to find good music now.