Yeah, Oasis are about the songs, especially Liam's voice (which was great) and the wall of sound guitars.
Noel played the bass on all of Definately Maybe and most of What's the Story. I had a quick peek of Tony Carrols biog in WHS and he said Guigsy was a bit wobbly lived but he managed to work with that, but in a studio it didn't cut so Noel deleted all the tracks and did them himself.
We do Cigs & Alchohol and TBH I made my own bassline up that I enjoy playing.
Best not to mention Oasis & basslines in the same sentance.