My gut tells me Todd Frazier is undervalued ... I won't go beyond that.
FanGraphs offers its take on the Todd Frazier signing:
https://www.fangraphs.com/blogs/mets-add-todd-frazier-at-bargain-price/
This offseason I have yet to cite the Marcel projections, which give Martinez this edge over Frazier in hitting:
TF 555 PA, 71 R, 29 HR, 75 RBI, 8 SB, .230/.319/.462/.781
JM 496 PA, 73 R, 31 HR, 81 RBI, 3 SB, .290/.358/.570/.928
https://www.baseball-reference.com/players/f/frazito01.shtml
https://www.baseball-reference.com/players/m/martijd02.shtml