I really agree with the practicing multiple ways. One handed, off hand, two handed as a life or death situation can go down in so many different ways. And I am happy to say that my Glock 19 9mm allows me to comfortably and reliably do each different scenario.
On another note, I was toying with the idea of trading my AR-15 to get an AK-47, mainly because I'm lazy as hell and really didn't enjoy cleaning the AR last time around, lol.
I would rather have something a little bit easier in the maintenance department and if shit does go down, I sure as hell don't want to be tearing down an AR in the field.