While the sounds coming out of it are as distinctive as any music in any genre, I'm not sure Lucille the guitar has quite the distinctiveness as Trigger. Trigger, and the red, white, and blue upside down strap along with it, are symbolic of Willie Nelson's music in a way few things represent concepts.
To answer the question, I think Lucille belongs in the Rock and Roll Hall of Fame. BB King pretty much single handedly defined minor blues with that guitar.
Granted B chord amnesty by King of the Mutants (Long live the king).
If it comes from the heart and you add a few beers... it'll be awesome! - Mekidsmom
When in doubt ... hats. - B.G. Dude