Mauer, compared to the rest of the AL, is 15th in slugging, 9th in OPS, 3rd in OBP, tied for 16th in doubles (which is only 4 away from being 6th, by the way), and 2nd in average. If mauer were a 1B this year, he'd rank 6th in slugging, 3rd in OPS, 1st in OBP, and 3rd in doubles and first in batting average.... I realize not all the stats I listed are necessarily power numbers, but it's pretty obvious the dude can hit, and he is far more than a singles hitter. Maybe that 71.2% is due largely to previous seasons, but this year he is clearly not a "singles hitter." Also, Mark Grace had a career BA of .303 while Mauer's is currently .323. This means that while Grace is producing outs at a higher rate than Mauer, Mauer is getting more hits as singles which is inflating his "singles percentage." I'd take the guy getting on base more than the guy who produces outs more often. This means that the comparison to Mark Grace is flawed when comparing just "singles percentage." You'd need to compare guys with identical batting averages. In terms of this silly "value only at catcher" argument, it's pretty obvious this kind of production would be valuable at any position on the diamond.