I'll put in my 2cts
I used abduction 1.81 from march (I think) to last friday.
Either way Hanger did a great job
Stability (about 1-2 hot reboot a day, which was better than the deck i was coming from)
Stock rom feel
Stability (1-2 reboots a day is still quite a bit)
No new release for a while (I believe hanger had other things to worry about...)
I switched to cm9 just to try something new.
It is more stable and faster than abduction
But so far, I am missing a couple things from stock. Like the app uninstall on long press from app drawer.
I flashed incredikernel beta 2 with it. I never tried the stock kernel with it so I cannot comment on that.
Had 0 hot reboot using the gallery or the camera. Just the usual occasional hot reboot when unplugging from wall charger.
Both are great roms. Abduction offered more customization IMO but was a bit less stable.
Hope this helps!
---------- Post added at 08:57 AM ---------- Previous post was at 08:35 AM ----------
I forgot to mention, so far, I find battery life to be less good on CM9 than on abduction.
This may be due to HWA.