What hitter is most likely to break Roger Maris's single season home run record?

[Dracula]

Bonds, Mcgwire & Sosa have all hit over 61 homeruns on the juice but what player has the potential to hit 62 homeruns with out the juice?
Ryan Howard, Prince Fielder, Alfonso Soriano, Albert Pujols, Alex Rodriguez???
any others?

 

[John C]

Wasn't A-Rod on something too?

I'd go with Pujols.