To summarize:
He has prioritized them far more than Obama did,
A very high proportion of his nominees (about 75%) are either women or minorities,
more than in past D administrations, he has appointed a lot of people with backgrounds as activists or defense lawyers (as opposed to prosecutors), and
an unusually high percentage of his nominees are graduates of the most elite law schools. Biden himself is a graduate of a non-elite school (Syracuse), and didn't do well there academically. But that background seems to play little role in his nomination choices.
I would add that, like recent GOP presidents, but unlike recent Dems, Biden has excluded the ABA from the prescreening process for nominees. Whereas Republican presidents did so because they think the ABA is biased against conservatives, Biden apparently did it because his aides worried the organization might give lower ratings to minority nominees and/or those with less experience in government.
Whether the combination of 2, 3, and 4 leads his nominees to make significantly different rulings than Obama and Clinton nominees have, remains to be seen.