The next run the 2013 Reds score will equal their 2012 total. The team is scoring 4.37 rpg this season, up from 4.13 last season. That's actually a healthy jump because league scoring is down year-to-year from 4.22 to 4.03 (and, yes, I think you can put a lot of that on the disappearance of the Houston Astros). In rankings terms the Reds are up from 9th to 2nd in the NL for rpg.
Some other numbers:
.250/.328/.394, 96 OPS+
(non-pitchers) .256/.337/.407, 102 OPS+
.251/.315/.411, 92 OPS+
(non-pitchers) .257/.324/.423 97 OPS+
The league slash line is down a bit across the board.
Main thing is the Reds are up while the league is down. So, much as we might bemoan the offense, it has improved overall at a time when most others have gotten worse.
And it clearly has been the boost in OB that's done the trick. Adding Choo and a full season of Votto are the drivers here. The 2012 Reds had more power and if the team had been able to add its current OB with 2012's SLG it would be a fairly formidable unit. Yet there's no disputing the offense is better even if it's well short of perfect.