I'm not sure what you mean by "weaker". Both of them are very smart, conservative women. I would hate for the Fifth Circuit to lose either one of them, but on the other hand, I think either would be a wonderful Supreme Court Justice.
Clement's record as a consitutionalist, is almost non-existent. as I recall, her background is in maritime law issues? I recall that Mark Levin was not high on Clement when she was the rumored pick.