The counter attack ,in my perspective, has more weight and is much tougher than the northstar but it tends to have loose binds while the north star over all plays better but it can completely crack very easily. either way there both awesome yoyos. it mostly is up to preferance.
@watteves I have both but North Star is definitely better. Counter attack is not bad but it's old shape. Trending tricks like horizontal combo are hard to be done with counter attack.