All dependant on your nightlife needs, Bansko has many things to offer , but as with lots of things in life its a ersonal thing , if you elaborate on your likes/ dislikes , maybe we can make a better comparison .
Bansko for snow/slopers evey time
I found Borovets ladies on the corners to be very off putting with a family , amybe if you were with a gang og blokes ?
Agian need more info on likes etc to be more subjective
I didnt rate Boro personally but have a mate at work who raves about bansko and goes every year as a group of lads, in fact one of his friends owns a place there.......