This is Max's 10th season and he will turn 33 thus month. He has 2064 k's so far in 9.5 seasons. A career 3.29 era.
Steven is in his 7th season, should be 8th, and turns 29 this month and has 1223 k's so far and a 3.19.
Pitchers are like fine wine.... Who's better?
If Strasburg pitches like current Scherzer for the next four years, I won't care about the answer one bit. That would be awesome. For the career comparison, it's a tough call: Strasburg was immediately a very good pitcher upon arrival in MLB, but peak Scherzer is better than Strasburg.