Taylor is only acclaimed for her music, although Beyoncé's last two albums were more acclaimed than any of Taylor's. Apart from that, Beyoncé's an acclaimed vocalist and performer/dancer, so.
Hard to say.. for now, I'll go with Taylor since Her music is rated highly critically and She has two AOTY awards from NARAS. But at the same time, Beyoncé has a 90+ album on Metacritic, one of the most influential albums of the 2010s, and is the most awarded woman in Grammy history. Tough call to make.