The only person i've rooted for in recent years is probably Deontay Wilder. I know he's not the most talented, and he won't go down in history as a particularly noteworthy champion UNLESS he beats fury and then johsua, but it's still nice to see an american heavyweight champion with some knockout power.
Erik Morales Veeraphol Sahaprom Oleksandr Usyk Regis Prograis Krzysztof Głowacki Callum Johnson Julio Cesar Gonzalez
Fury Golovkin Prograis Lomachenko Canelo Usyk Pacquiao Yes I said Golovkin and Canelo.....it's okay to like them both.
Since 2000: Pac Cotto F Lopez Jhonny Gonzales KT 3G James Toney Froch Fury Erik Morales MAB JMM Tito T And a few more I probably can't think of right off the bat.