After doing some research I have compiled the list I most want for Mahler's symphonies. Comments appreciated. If you think I am totally off the mark on a particular recording then let me know. The ones I have already bought are in red.
no.3 Abbado Jessye Norman version
no.4 Bernstein Sony
no.5 Bernstein DG live
no.6 Abbado live
no.7 Abbado live (same series as 6)
no.9 Barbirolli / Karajan ? should I get the famous karajan one?
no.10 Kubelik ( I don't want the Cooke version for now )