They're both working beta versions, both have bugs, maybe not the same ones but still bugs.
Unless you want to bugtest the ROMs, leave it for a week or so for the next versions to come out.
These are not ROMS you want to flash if you're looking for a stable replacement for WM5, therefore if you're asking which is best, the answer is, neither, at the moment.
If you want to know the differences, read through the threads for each one and see what problems people are having with them.
HTC Sensation XE - CM10.1 AOSP 4.2.2 Jellybean [KANG] - albinoman887
Ex- HTC Trinity user, Ex Diamond, Ex HD2 user