Is Keenan Allen more valuable than Doug Baldwin?

Tommy Gilligan-USA TODAY SportsThe San Diego Chargers signed Keenan Allen to a four-year, $45 million extension on Friday that could be worth up to $49 million with incentives. Allen was going into the final year of his rookie contract, in which he is set to be paid $1.8 million after making just $753,000 last season. The APY is higher than Larry Fitzgerald and Jeremy Maclin, and would make him the seventh-highest paid receiver in the NFL by that measure.

But is that fair?

Allen missed eight games last season, but was on pace for 134 catches, 1,450 yards and eight touchdowns before suffering a lacerated kidney against the Baltimore Ravens. That would have been the second-most catches during a…