so far the stock CM6 one that comes with the rom, slayher's 1ghz 1.7. Trying jdlfg 1100 v3225 now.
The random reboots seem to just be hot reboots. As in only the system_server and graphics shell is rebooting. It never hits the M logo and reboots within 10 seconds. Ive been getting them around 15 mins or so.