I think there are easier ways. We learned how to get out of a choke hold during defensive tactics in the police academy. You basically bend over at the waist and rotate and it throws the dude off of you in 1 second. I'm no fighter but it was one of the simplest and easiest techniques we learned.
Modified shoulder throw. Unfortunately, a person trained in a rear naked strangle will either 1. Know better than to attempt one standing behind you. 2. If he does, he/she will have their legs wrapped up around you to prevent the throw.
The best tactic is to not get in to one in the first place. Tuck your chin hard and it's damn near impossible for them to get under there for a good strangle. FYI, this is a strangle, not a choke. Choke cuts off air, strangle cuts off blood supply. A choke takes longer, sometimes minutes, where as a strangle takes seconds to take out an opponent. That's why the difference in knowing is important. One is deadly in a matter of seconds.
Tucking your chin/keeping your chin down, is generally a good fighting position to be in in almost every situation. In standing position, you should be sort of facing downward, not totally tucking the chin. In a grappling situation, you want to keep the chin tucked tightly