I use all kinds of dffernent battings. Each has its pro and cons. Its good to learn about the differnent battings , so you can make a decision thats right for each project. I do tend to use quite a bit of Warm and Natural , but thats for table runners and wall hangings where I want a consistant thinness and more structure in the batting. I really don't like runners that I worry if a glass will be more tippsy because of the batting.
There are frequently times when I double bat a quilt , but I then mix cotton and poly . I get more warmth ( with out the cost of wool) and it will dry faster in the dryer. Plus a get that bit of extra loft, that enhances the quilting.
If you looked at my storage place for batting , you would be hard pressed to figure out if I really had a favorite.