Totally depends on the recipe and mash schedule for me. I generally try to work it out with two equal batch sparges resulting in 7.5-8g in my keggle, clearly the size of the batches vary with the amount of grain used due to absorption. I've also started incorporating a mash-out infusion with the first batch on some recipes.
For a step and/or decoction mash everything goes out the window, but I frequently start at 1qt/lb and wind up around 2qts/lb. in those cases.
So far I have not done enough AGs to say. I've been like a first time extract brewer.. kinda following a recipe till I get the feel for the process and all. My last AG had 9 1/2 pounds and the mash was 3 gallons. So what does that come to... 1.3 Quarts per Pound.....
Perfect post. I was just about to ask this question. I'm finally doing my first partial mash today with 4lbs of pale and 1lbs of crystal. I think I'll go with 1.25. That also brings my strike temp down to 172 which is more in line with what I've been reading on this site.