Although Mayweather is a perfect 47-0 entering the bout, boxing experts remain split on their picks. Celebrities tend to favor “Money” over “Pacman.”

MORE: Time, date and odds | Ticket prices | How to watch the fight | History at MGM Grand

Expert predictions

Dan Rafael, ESPN.com: Mayweather by decision (via ESPN.com)

Rafe Bartholomew, Grantland.com: Pacquiao by decision

Teddy Atlas, ESPN/Friday Night Fights: Pacquiao by split decision

Joe Tessitore, ESPN/Friday Night Fights: Majority draw

Kelsey McCarson, Bleacher Report: Pacquiao by close decision (via Bleacher Report)

Kevin McRae, Bleacher Report: Mayweather by unanimous decision

Jonathan Snowden, Bleacher Report: Mayweather by decision

Paulie Malignaggi, Showtime: Mayweather (via Business Insider)

Miguel Cotto, WBC middleweight champion: Pacquiao (via New York Post)

Wladimir Klitschko, WBA/IBF/WBO/IBO heavyweight champion: Mayweather (via ESPN.com)

MORE: Tyson calls out Mayweather | Floyd to pay Suge Knight’s bail? | Wahlberg, P. Diddy make HUGE bet

Celebrity picks

P. Diddy, rapper/producer/entrepreneur: Mayweather

Mark Wahlberg, actor/producer: Pacquiao

Shaquille O’Neal, former NBA All-Star/current TV analyst: Mayweather by seventh round KO

Tom Brady, Patriots quarterback: Mayweather

Bill Maher, comedian/host of Real Time with Bill Maher: Mayweather

Jamie Foxx, actor/singer: Mayweather

Booker T, WWE Superstar: Mayweather

Jerry “The King” Lawler, WWE Superstar: “I just got to say it’s a tossup. I’m going to enjoy it. I’m going to watch it. But I have no clue who will win… To me, this is going to be one of those fights where I just watch two guys beat the hell out of each other and I’m just going to sit back and have fun watching it.”