Lee, thank you for your interesting and exhaustive (I'm sure!) survey of Mahler 1. Of the recordings I know, I found that our opinions are usually not far off at all (except that I think Bernstein is overrated).
For future surveys (or perhaps a revision of the first one), you might consider adding an appendix listing all the recordings you gave a score to, in descending score order and in alphabetical order. This would be a useful reference.
My best wishes to you and yours.