Mine is Lomachenko. He is fantastic to watch. The only prospect (using this word intentionally) I see right now with potential to top the p4p list.
Koki Eto. The kid is as raw as they come but his last 3 fights have all been FOTY contenders. If you can find me a more exciting fighter I will give you my missus for a night.
I have only seen Lomachenko on youtube and He is one of my favorite. I also like David Lemieux because of his style. I sure miss David Tua though
Golovkin with Kovalev a close 2nd. Suddenly there are many exciting fighters that have established themselves or are just coming up, from wich a lot have already been mentioned here. Thurman Loma Santa Cruz Frampton Gonzalez Usyk Beterbiev Joshua and I'm pretty sure I'm forgetting a couple. Exciting times :bbb