In my opinion, you should read the Hunger Games Trilogy. I find the Hunger Games Trilogy to be really interesting than the Harry Potter Series. You can read Harry potter series after you are done with the Hunger Games Trilogy.
I really like the Harry Potter series. But the first one is my least favorite, but they are all really really good books,but I have never actually read the Hunger Games books but i heard that the were really good books so i would say that you should read both
Ive read all the hunger games like sooo many times. Each time I read it differently. Its action packed, romantic, and exciting. It has something for everyone. Harry potter though.. Lets just say.. not a fan. I tried but by 3 it became a difficult task to read, rather then a fun read. I found it boring and way to fantasy for me. Hunger games is futuristic, rather then fantasy. For my taste in reading, I dont like fantasy. It depends you preferences.