I've been making a mental group of "best artists/bands of all time." I don't believe in lists (the whole concept of ordering subjective things pisses me off) so I've simply made a group of artists and bands that I feel are the best. I don't have too many strict rules on what helps you get on this list, but a diversity of music and longevity are the key factors.

• Beatles
• Oasis
• Radiohead
• Queen
• Counting Crows
• Greenday
• Tupac Shakur
• Moby
• Outkast
• Led Zeppelin
• Jay-Z

The second grouping below are artists I'd tier below this group. The main reason they never made the "jump" is because I feel they didn't offer too much diversity in their music.

• Matchbox 20
• Bon Jovi
• Offspring
• Weezer
• Sarah McLachlan
• Semisoni
• The Ataris
• The Shins
• The Get Up Kids
• Yellowcard
• ATB
• Phantom Planet
• Eminem
• Michael Jackson
• Elton John