This is going to be a topic I'm going to probably come back to later...but for now here is my first impression between the two:
From the original posting fee to the transaction fee, is a total of $.34 on Etsy.
Ebay, with minimal additional features/upgrades, was $.70 to post, and then 8.75% of the final sale...
Need I say more? Well, yes, I should actually! I find it easier to promote my shop on etsy than to promote listings on Ebay! Will this change in the future? Who knows!? But for now it's about cost, and Etsy wins on that!
Etsy: 1 Ebay: 0