Don't "try" any of them. Call and ask to observe a class, and then do so -- at all of them. You won't understand much of what you see, but that's OK. Just observe the dojo, the training, how the students and sensei act before, during and after, and ask yourself if that -- what you see right in front of you, exactly that and nothing else -- is what you want to do. Double-check by asking the sensei or students afterwards if the class was typical, but chances are it will be. Then, make your decision based on this.
Excellent advice, this is what I did!
Six years later still happy with my choice.