First of all....welcome to FT! I am sure you will find these forums to provide valuable information for you in the future.
To get better suggestions, I would suggest you provide a little more information. The question you asked is not very specific so in order for people to provide THEIR opinions they will want to know things like:
1. What is your preferred airline? Is it Delta since you mentioned it?
2. Do you prefer a specific hotel chain over another?
3. Do you have elite status with any hotel chains or airlines?
4. Are you planning on any major trips in the near future that you would like to consider using the points for?
5. Do you want to use the points for hotel or airline awards?
Basically any info you provide will help. Right now based on the original question I couldn't give you a good recommendation and I am afraid others won't be able to either. Generally FT members do not recommend gift certificates as the best choice for points redemption. The value usually only works out at 1% and you can do a lot better with hotel rewards and first or business class flight redemptions.