First lite makes a womens chama called Artemis 230g Merino Hoody. Sitka i believe is coming out with 1. I like merino over poly myself but i dont have an answer for which 1 is more versatile. Just wanted to point out the women's version.
Do you want it for more of a baselayer, or as a possible outside layer. I think of the Chama as a heavier baselayer and I don't see how that would change with the addition of the hood. If you think it will be used more as a baselayer, then I agree on the Merino. If you think it will be used more as an outside layer then I would go polyester. Another option for a good price is the Skre Madtrapper hoodie at $45. So far the only thing I have from skre is their gloves so I can't comment on quality, but the hoodie seems to get good reviews.