I wanted to bring up why its silly to bat your weakest hitters 2nd.
For example Orlando Cabrera has stepped to the plate 453 times this year. Hes got on base a total of 133 times.
Jay Bruce has stepped to the plate 427 times but has got on base 138 times.
Lets say Bruce had as many PA betting 2nd as Cabrera he would have been on base 148 times this year. thats 15 more RBI chances for everyone that hits behind him.
Votto has knocked in 18% of the baserunners hes had on base. Thats 3 more RBIs for Votto at least from Bruce alone. Not to discount the times the higher OBP guy extends an inning giving Votto even more RBI chances.
If Cabrera has as many PA as Bruce he would get on base 127 times.
You basically gain a net of 4 more base runners if it played out exactly the same, which it wouldnt because likely everyone would get more PA since the teams OBP would be higher, so far this year if you hit Bruce 2nd, and Cabrera 6th. Thats comparing a .298 OBP to a .326. That doesnt even consider in slugging percentage which likely means Bruce scores even more often since he would likely hit more doubles, triples and home runs.
I used bruce and Cabrera just for examples sake to show how much .30 points in OBP means even before slugging is taken into effect.