I just can’t choose which one I’ll like more. I didn’t use one at all with my son, and want to get one with this next baby. The C-shape seems nice because you can use it to prop baby better, lacking it falling either way, but the V-shape seems nicer for nursing a larger baby, and also keeps your other arm a bit freer. (And I am small, so the size thing is not an issue, as I know it is for larger women who try to use the C-shape pillow.)
Thanks for sharing your attitude!