Callaway X-20 NG or the X-22? i am stuck in between , which to buy? thanks?

Hi my fellow golfers, im just playing my 3month, mid-high handicapper, consistent; i bought a box set Wilson's 2month old, basic(not even on PGA resale list), but now looking for an upgrade, along with upgrade my game level...Which would you recommend, the x-20 ng or x-22? or something else. thanks.