Currently I would put Barcelona ahead of Real Madrid. Because all the players of the Barcelona team play the match with great responsibility. On the other hand, if Real Madrid has a dedicated striker, I think the team will be complete.
Everyone can have their opinion, but I think that Real Madrid being ahead of Barcelona, and even if it is only slightly, is more a fact than anything else. Though I would admit that the injury of Vinicius Junior might close that gap a little bit between them. But this is only for the moment. If Barcelona can find their best shape, things could be looking differently. But Lewandowski is not quite there yet and I see a few positions that are really not filled that well.