DBSK n Big Bang??? Which one is the most popular?

my friend in korea told me that big bang is more popular in korea than dbsk? I just won't accept the fact...well,I'm juz a BIG fan of DBSK! If any of you know anything bout the real truth(with the exception of personal interest), can anyone tell me who is more popular? n is there any reliable source? I've watched big bang's PV n they seem to be like this free-thinker kids (4 me it looks like they dun have any problems in life n that attracts me :))