BEST=? I firmly suggest that one must follow his heart, not the herd. I'm not that experienced, eventhough I can say that engineering is such a field where innovative passion, imagination and hardwork do matter. So, go with what your mind thirsts for. And you should note that, a branch which has good scope at present, will bear a 1000s of engineers when u co.plete your course. Hence, it's not fairly predictable, to determine whether a course is scoped or not after a number of years. You just just follow your heart friend, it's the only thing to which you have to be attracted to.