I mean you need to specify what do you mean "better". Believe me, both are killer software. They have each own advantage / dissadvantage. You must specify what do you want to do. How do you want to work. Do you use MIDI and/or looping. How much do you want to spend. How 's your setup now. PC config. etc. etc. Better tried their demo before buy either.
BTW, it's Cakewalk forum. You don't expect people here will vote for N-Track, do you?