There are a lot of Great headphones in ear and over the ear out there in the market, but since we are in the Windows forums all i can say is if you want something that sound good, and that is COMPATIBLE with your Nokia phone the only ones that i know so far that are COMPATIBLE are the NOKIA-MONSTER PURITY. In ear or Over the ear doesn't matter. Before buying my Purity headphones i tried a few brands(Skullcandy, Apples etc) with my Lumia 920 and not all the functions works. I was having problems having to disconnect the headphone jack every time someone calls ,then after hanging the call the song starts playing without even connecting the headphone back. It was really annoying for me and for the people surrounding me. With the Purity headphones, mic work, forward,stop,skip and talk works out of the box.
I imagine that if your phone is HTC 8x then you should go BEATS since that is what they support.