Which musical instrument do you find the most interesting to listen to or play... Bass? Guitar? Personally I love guitar both for listening and playing... It allows diversity in diffrent tones, and is a kick to play!!! I love this guitar!!!!!!
I play both but I dedicate more time to my electric than my bass. I get my bass out every now and then to play some improvised riffs but that's about it.
I like both, since I feel like it is impossible to have one in rock n' roll music without the other to compliment it, save for maybe the music of The Doors. But in most cases the music wouldn't be fully structured if it didn't have guitar and bass within.
I have to say Bass. It holds the structure of the song. As Legatus88 said, Les Clapool is very good. But someone else is Paul McCartney. Especially in the later years of the Beatles, he was very creative ,making the bass really stand out.