I noticed fangraphs projects a 2.1 fWAR for Durbin.
They project Contreras as 2.2.
Here are some selected projections:
2B/3B:
4.5 KMarte, 3.9 Bichette, 3.8 Bregman. 3.7 Neto, 3.4 Hoerner, 3.1 Donovan
3.0 Semien, 2.9 CJ Abrams, 2.8 G Torres & Devers, 2.7 E Tovar, 2.6 Keaschall
2.5 Meidroth, 2.4 Paredes. 2.3 B Stott, 2.2 Okamoto, R lewis 2.2
2.1 Durbin, A Bohm, 2.0 Murakami. 1.8 Polanco, 0.6 M Shaw
Basically, Durbin fell about 1.6 short of Bregman, 1.3 short of Neto and 1.0 from Donovan. He's almost even to Paredes, Okamoto & Bohm. He looks better than Polanco, Shaw & E Suarez.
1B/DH:
2.7 Schwarber & Alonso, 2.5 Yandy Diaz. L Arraez 2.3
2.2 Contreras
2.1 Rooker, 1.3 E Suarez
It looks like Contreras is not too far (0.6) from Alonso & Schwarber, but his defense probably helped him close the gap. He does look like a better choice than E Suarez.