What is with those Fanning sessions though?
I think the bass on the session version of Expedestrians was much beefier (was it Fanning, Radio 1 or XFM? I forget). That one was always better in my book. Mick's bass rocked live.
Some of the Kerbdog sessions are good, but they also have less production on them*. The Gggarth recordings would have multitracked all the guitar parts to give more depth and stuff. The sessions are always quite raw. That's why they can often sound "better" to fans but "worse" to the casual listener.
* If you've never seen the docu on the making of Nirvana's Nevermind, you should. It's a good video and Butch Vig explains a lot of the theory behind mulittracking guitars and vocals to beef up the performance.