I'd say shopify if you want to spend less time. If you have some customizations in mind and there are no shopiy apps doing that, then you might lean to wordpress, since its community is huuuge and you can find plugins for most of the things you'd dream of (it requires a bit more knowledge though). I'd skip other solutions if you have no experience at programming. Ecommerce cms like prestashop are great, since it was built for this single purpose, but community is smaller, so is the addons pool, which means a lot of "do it yourself". Same for whatever other cms names you would come with (magento, opencart etc..)