Why is Frans Hals still not considered the equal of Rembrandt?

Who was Frans Hals? We know very little about him. He was baptised in either 1582 or 1583 in Antwerp. He died in 1666 at the age of 83 or 84. Approximately 220 works survive. One discredited narrative claimed Hals was a drunk – an inference probably based on his subject matter. There are several depictions of drinkers. On the other hand, there is his evident industry. Two streets in Haarlem, where he lived his entire life, have been identified, but not the actual houses. He was buried in St Bavo’s church in the Grote Markt, which was originally Catholic but became Protestant. There are two commemorative slabs next to each other in the chancel floor competing for authenticity. Which is appropriate, because there are two Frans Hals – the traditionalist and the innovator. They co-exist.

The Frans Hals revered (and sometimes lovingly, painstakingly copied) by Whistler, John Singer Sargent, Lovis Corinth, James Ensor and Van Gogh is a spontaneous, apparently improvisatory painter.