Hi Laura:
We are going on the Valor Oct 12-19, and like you I wasn't sure about Roatan Island. However, I have read tons of cruise reviews (check out cruisecritic.com, choose the Valor and you will see tons of great reviews to this Western Itinerary).
One woman wrote about Gumbalimba Park. She said her pictures looked like something out of a Corona commercial. Since I am a photography nut...this is right up my alley. She said there is a fresh water pool, canopy zip line tours, botanical garden, pirate adventure, authentic cooking, moneys, tropical birds, snuba, beaches & shopping.
I am looking into this seriously, so if anybody reading it has anything to add, I would love your suggestions as well!