Comparing Wordpress themes

I am rather new to wordpress, I am developing an ecommerce website with purchased themes as they feel bit reliable and full of features and ease.
I initially wanted to develop and website using “the retailer” theme but then I discovered flatsome theme is better, In addition I requested envato Team to revoke my license for " the retailer" theme.
Is there anyone who can give me quick comparison between “the retailor” the “flatsome” themes or any other suggestions in addition to this.
I had partly developed some of my part already with the retailor theme which you can see at