I just prefer the taste of Kosher dill pickles. Extra garlic! I don't know if that matters for cramps, but it really works for me. I had a kidney transplant 18 years ago and sometimes my body doesn't work too well. The pickle juice definitely prevents my leg cramps when I feel them coming on.
On another note:
Do any of you remember a few years ago on a BYU game broadcast when Lee Corso said on the air, "That Napoleon lost at Waterloo because they forgot to drink their pickle juice?"
I'm looking for a broadcast of that game so I can capture that quote? I cannot remember which game it was but we kept it on our DVR for a while just so we could hear that line. Really funny!