Axl's unique raspy voice, best front man in the world IMO
Axl's creative lyrics
Slash's blues based guitar solos/riffs which make his guitar speak and really complement Axl's voice. Tone/style instantly identifiable as GUNS.
Integrity of the band - do and say what they feel
Songs based in reality with real meaning behind them - authenticity
Originality - stage outfits, 9 minute epic songs, epic music videos, combination of punk and hard rock.
Energy/power - The songs, the concerts, always make you feel alive/involved
Apply to current band and conclude accordingly