I think his potential is quite high. Playing under Crawford, he should see a lot more ice time, and not be forced to play a lunch pail game like Murray wanted. Not only will it help him stay healthier, but it will also help him rack up the points.
With McCauly and Conroy down the middle, we have two Selke nominated centers. As Reaper mentioned, McCauly was playing with bone chips in his knee most of last season, but the year before, he scored 20 goals and put up more than .50 points a game.
However, with that said, I too like Armstrong, and I do think he is a better playmaker than McCauley is.
The disagreement here comes because "better" doesn't define anything, so everyone has their own definition for it. You're never just "better" than someone; you're better at something than him. No one would disagree that Samsonov is better at consistent production because he's proven it over a long career. The few people who have brought this up are correct. On the other hand, a strong case could be made for Cammalleri being a better choice if you had to choose between the two players right now, because of youth and potential. I believe that the latter is what johnjm22 means, and I agree with that, too.
If you're going to compare two similar players, don't unequivocally call one "better" than the other unless you're clear as to what your frame of reference is (i.e. what he's better at or for).
like i said... Sergei Samsonov hasn't ever hit 30.
Cammy is a better pure goal scorer than Sammy. Sammy has never shown that he is a pure goal scorer! Everyone at this board believes that Cammy is, which may or may not turn out to be true. I believe Sammy is more accurately classified as a playmaker.
I don't think Samsonov is an accurate comparison for Cammy. I once heard it said that Cammalleri plays how Comrie SHOULD play. I believe that Cammy is a better natural goal scorer than Comrie is, as well.