Jus stumbled to this thread... seems like the same dilemma most of us have faced thru ...
And without preaching too much of gyaan...and telling u a whole list of criteria on which to decide what to do.. I ll stick to one.. .
" Just find out what ur life will be after 5 yrs, or 10 yrs, or 15 yrs, after pursuing the career of ur choice, and ask ur self the million dollar question --- Would u love to be that"
Hope it helps !!