Unrefined is the one to use if you are using it for all the health benefits, I pretty much only use it in smoothies, I do have the unrefined (by accident) that I use for cooking sometimes, but I'm not sure the health benefits are really there in the unrefined, so I usually just use olive oil for cooking. I find the unrefined has too much coconut taste for regular cooking, but would probably be good in curry dishes.
Oh yeah, then definitely go with the unrefined, it also adds a nice coconut flavor too. You'll notice it changes consistency depending on how hot it is, so in the market it's likely a solid because the store is very cool, and for me in the summer in my house it can "melt" almost to a pure liquid, but in the winter, it usually stays solid. That's the same brand I buy.
Unrefined is more coconutty and refined is less coconutty, more bland flavor. I like the refined and I do seem to get all the benefits such as a revved up metabolism (higher body temperature.) and it helps with my sense of hunger. Its my go to oil for baking and stir frys.