Round, Flat, Thumb Support?

I've started covering crochet hooks with polymer clay.  I have 3 different styles.  I'm thinking of adding them to my Etsy store, but I'm not sure yet. 

If you were to see these crochet hooks in my Etsy store, which style would you be more inclined to buy? I'll be selling them for $10 + shipping. 

These crochet hooks have big, round handles.  I like them.  They do make it easier to crochet for a longer time without my hands aching so much.

These crochet hooks have a flat handle.  They are the smaller sized crochet hook, but I could make the handles round, too.

These crochet hooks are flat, but they do have thumb support. 

I could make any of the hooks the way people like the best.  I'm just not sure which style to offer, if I do.

Would you help me out?
I need your opinions.
Thanks!