Sure, they all have their own pros and cons, but which one did you personally find to be the most useful for you? Iosefka's gives a greater amount of health recovery, but doesn't have any regen effects of any sort. Adella's heals you immediately for a certain amount, and then gives you temporary health regen. And Arianna's heals you for a certain amount, and gives you temporary stamina regen.

Personally, for me, I think Arianna's is the most useful since you always need some stamina for attacks and dodges and such.

You know it's funny but i don't think i have ever used any of there blood, i collect them but never get around to use them unless i need a emergency drink during a boss fight, but by that point it is normally too late.