On the Relationship Between Python and Lisp: compare the two. Well this is written from a python standpoint. So there is some bias. But then again, there are some salient points in the writing. Now language wars are always something of a "I can think in X, so it's cool" stripe but then again, what works for you, is the right one for you. I guess it's all a matter of tools.
And the thing is that I found this while looking for cl-xml. cl-xml *was* something that allowed a person to parse and query xml. But it was on a mac.com webpage and apparently the person that had it stopped paying mac. So it's gone. Much sadness.