Now: Floyd Mayweather
All time was Sonny Liston who was a force prior to the Ali fights. caused 73 stitches, broken cheekbone to Chuck Wepner in his last fight 1970. Ali had to go 15 rounds with Wepner 6 years later.
secondly, Joe Louis who to me was a champ both in and out of the ring.
Marvin Hagler
All time: Tommy Hearns or Lennox Lewis
Now: Guillermo Rigondeaux
Duran, and Lennox Lewis
Now James Toney, and Hopkins
it's a tough choice between Julio Cesar Chavez, Juan Manuel Marquez, or Manny Pacquiao.
All time? I have too many like Salvador Sanchez, JCC, Duran, Morales, Sweet Pea
Right now? Canelo Alvarez.
Of all time: Muhammad Ali
Now: Floyd Mayweather
Pacquiao
Mike tyson
Hey boxing fans out here I just want see who are your favorite boxer my favorite is Miguel cotto watching his fights was the key for me to falling in love with the sport. The boxer can be from any era
Ali & Pac
all time: tyson, rocky marciano, igor vysotsky
now: golovkin, canelo, pulev