Best platform for selling music via major online stores?

[MitchT]

I'm wanting to sell my music via the major online stores. At face value Ditto Music looks cheapest and, as a dance music producer, I was particularly attracted by the fact that they offer distribution to Beatport, which many others don't. They have a comparison table illustrating that Tune Core and CD Baby are more expensive. Digging further though it becomes clear that CD Baby don't charge annual fees while Ditto Music and Tune Core do, so CD Baby, while a little more expensive on Day 1, actually works out much cheaper in the long term, particularly if you end up with multiple releases up for the long term. Various articles online actually conclude that CD Baby is best for "small fry" musicians like me.

Does anyone here have experience of selling music via the major online stores? Which platform do you use for getting your stuff out there?