Laxus Dreyar has powerful lightning abilities and is often considered to be one of the most powerful members of Fairy Tail. He is a beast in combat but Natsu has definitely surpassed him at this point. Natsu can even use lightning in his abilities now so that makes for a double threat. Laxus would need a considerable power up to catch Natsu and at this point I don’t see that happening. Natsu wins.