Suggested by Destroyer Natsu is a very powerful fire type fighter and he continues to get stronger with each arc. He has gotten to the point where he is a real threat to just about any fighter. That being said, I don’t think he is quite ready to handle Ichigo yet. Ichigo has his bankai and has been powered up many times over the years. His abilities by the end are just leagues above the rest. Having a sword also means that his attack range is greater than Natsu and that helps a lot in a fight like this. Ichigo wins.