Relative to album sales and impact, Nirvana is #1 and nobody else ever has been or will be close. They were the hammer that destroyed music in the US and reduced the industry to commercial recycling.
If there’s one band that’s gotten popular with genuinely original, quality music since, I have not heard of it. And I’ve been looking for all this time.
It's a desert out there. Other than gospel and classical music, the only pop album I've bought in this century is Coldplay's Viva la Vida, but then I'm a female.