When I hear a Band yell out, 'Do You Want to Hear Some Blues??!!?' I immediately think, 'Uh Oh. I guess they're out of material'/ LOL. Many times Blues Basslines ARE boring and simplistic and something a new Bassplayer learns his first lesson. However, it really is not how complicated it, but how you play it. In guitar when you compare John McLaughlin and Duane Allmans you see the former plays at super speed but, 'TO ME' (opinion only so no flaming please) sounds like a computer is playing it and it's boring, but Duane is super tasteful, original, and full of dynamics. Bass also can be slow and super tasteful. simple but with dynamics and when they go into the 12/8 Double Time at 5:14 the walking Bass is both simplistic but tasteful and flawless.
YouTube - Allman Brothers / Stormy Monday