Standard. As a non-artist, the use of the Premium membership would mainly be for things that have been stripped from Standard. Like auto-enlarged images and middle clicking on download actually opening the file in a tab.
I'm on Standard. I don't think I need Premium as I'm just a viewer here since my drawing skills suck worse than The Great Khali's wrestling skills. But it couldn't be too bad to try to get Premium membership just to see what it's like having it.
In case you don't know who the guy I mentioned is, he's a WWE superstar standing at 7'3" and looks way too awkward in the ring. I think he doesn't even know what he's doing in the ring sometimes. Yet he's part of the WWE cause he is from India and is a big-time celebrity in India. International Marketing. That's all he is employed for....oh and cause he's 7'3", roughly 400 pounds, is all muscle, and has hands that(when used together like a vice-grip) could pop a basketball.