I think the 2000's indie rock/music scene is a lot more interesting than Grunge because the scope is so much wider. The strokes, interpol, black keys, etc. all sound different from one another yet also fit in one neat little package if you were to listen to them in a row. Grunge isn't like that too much. I do appreciate grunge though, but it's become as overplayed as 80s music now that I can't really willingly listen to much of it anymore unless it's a new song I haven't discovered that hasn't been overplayed to death.
I know everyone and their uncle and dad talks about how awesome the 80s were for alternative music (and they were) but my god, did the 2000s and early 2010s have some of the most interesting alternative music like...ever. I used to put on the local alternative rock station when I commuted in 2012 and it would just be banger after banger!
I was more into the pop music of that time period from female artists, most of the alternative stuff from that time bored me to tears, used to like Imagine Dragons in the beginning but they got real bad real fast and I can't stand them now, also I HATE Twenty-One Pilots with a passion, their music is just too whiny for my tastes.