I am not understanding the qustion, Are you talking about marinating the ribs, or injecting the ribs, or is your question about smoking the ribs using a liquid? Also what type of equipment are you using, and what type of ribs?
I spray the ribs while cooking about every 45 mins or so. I use a mixture of apple juice, pickle juice, whiskey. I used to experiment with different liquids in the water pan, but the only thing I noticed was that the yard smelled real good.
We use apple juice when we foil the ribs using a 3-2-1 method. Once all we had was a apple/peach/grape cocktail juice and it was pretty good too. I'd say use any fruit juice that you have on hand and you'll enjoy the results.
poorboy, if you're using a smoker with a water pan, you can put just about any liquid that you want in it from just plain h2o to some cheap brew to fruit juice. For mopping your ribs you can use any number of juices or combinations of liquids as suggested.
Drop into Roll Call and introduce youself to the members.