The Lexar NM1090 Pro 2TB wins in 5 out of 7 comparable specs, with 1 tie. Its biggest advantage is Sequential Read (172% better).
WD Black SN770 2TB wins in 1 spec (MSRP: 62% better).
Recommendation
Choose NM1090 Pro 2TB if you want the best overall performance — especially sequential read.
Choose WD Black SN770 2TB if msrp matters more to you.