FTR, I, too, want to see them fill that hole with a power stick. But seeing the Steamer projections (even with the inaccurate inclusion of Bauers, haha), made me feel a lot better about just how much power the Brewers need to procure. It made me feel better about using a Durbin/Dunn platoon, or using a defensive player who's limited with the bat.
Also, Steamer is projecting Chourio with 28, Mitchell with 15, Ortiz with 13, and Frelick with 6. I'm not sure that I wouldn't take the over on all of those, individually.
Per the conversation about OBP>ISO, or whatever... OBP is really important, statistically. But much less important on an AB-by-AB level, where situation can change everything.
However, I also think many fans of power like it with the idea that power can drive in guys that are already on base. For me, that, too, is very situational. The reason I like power is that it gives the hitter a better chance of scoring a run himself, as he is more likely to be that much closer to home. In the same way, I love guys that can steal bases, and guys that can put the bat on the ball to drive in the guys in scoring position.
IMO, two of the currently most underrated "classic" stats are batting average (quick/dirty number, I know, compared to the advanced stats of today), and Runs Scored. Give me a guy that scores 100 runs every year for 6 million, over the guy that has 100 RBI every year and costs 26 million. Give me a stubborn, pesky hitter who fouls off 10 pitches and wears out that 100mph reliever, over the guy who loves to take walks go down 0-2 and K's on a well-placed slider.
To the idea of a lineup filled with Arraez-es or Hoskins, I really like having a balanced lineup. I like to have the speed/baserunning the Brewers possess. But I also like having guys that at least present a real threat to hit one out. Just having power threats is, IMO, very important in making it a difficult lineup to pitch to.