REM played stadiums. I saw REM at a huge stadium. I am chuckling a bit at trying to weigh the Rolling Stones against Bert Jansch. There's not enough Pentangle in modern pop culture.
"Angie" seems more folk influenced than blues, for mine. Compare it to whatever you think is a good example of its genre and I'm sure you get the point. It's fine. Is it great?
Anyway The Stones remain an inspiring example to us all of sticking at it.