I have a Maya Wrap ring sling. The padding is nice - especially when you're carrying for a long time. I also think it helps with positioning for newcomers. I have one without padding, and it can get a little "diggy." I also measured for the medium, but went with the large for nursing purposes. I like having the extra length, but that is totally a personal preference. I can't speak for the quality of the other brands you mentioned, but the Maya is excellent quality. I...