You yourself quoted the (temporary) 175 OPS+ for Dunn, way over his head presently. You know he isn't going to stay in that rarefied air.
1)
Molina is on the way UP in his batting prowess so even though he may come down some from his 141, Dunn will lose air faster as 2009 continues.
Dunn isn't going to suddenly increase his OPS+ from 2008 (129) to a whopping 175 or even close to it. 2)
He got much of his 129 OPS+ from his 122 W (incl. 13 IWs), so without swinging the bat, he got much of his 129 from watching pitches go by or getting a FREE PASS 3)
probably because his weak teams (mostly CIN) didn't have a good hitter behind him so the opposition could afford to IW or PA him. That doesn't necessarily mean 4)
he was a great hitter. Any batter that could only hit .236 with a whopping 164 K's (even with his 40 HRs) shouldn't be considered 4a)
some "great" hitter, 5)
especially in today's artificially-inflated hitter's era, that is 'era' not ERA. 6)
Not even counting the steroid possibility for the Big Donkey [LOL, nickname!], 7)
but the entire mentality of baseball promoting more hitting at the expense of the pitcher for well over a decade now. 8)
He isn't a threat to steal, he isn't a smart baserunner, 8a)
and is slow, and he's a poor fielder--*the worst* LF'er in the game. He belongs in the AL, if only because of the crappy DH rule they have there. If this was a pitcher's era (ex, 1965-1968) instead of the opposite today, he'd be hitting about .190, and be long gone. 9)
He typifies the worst of MLB today as far as skill is concerned.