ARTPOP easily ... 1D has passed their peak in popularity and buzz etc.. I don't think they'll outsell their previous albums .. Just like Justin Bieber ..
In my personal opinion I see Gaga doing around 30% less this era than last. (which is still REALLY good, don't get me wrong) While 1D does almost exactly the same as last era.
Which would put them narrowly ahead in both category's.