I think at this point you have to give the nod to Sizemore.
Because of Soriano's horrible start, 40/40 is definitely out of the realm of possibility, and 30/30 is a reach. 25/25 would be a god send right now.
Looking at Sizemore's numbers, there's no reason to think he won't end up 25/85-90ish/120-130/35 SB. That should put him well over the top of Fonzo this season. But don't be surprised if Soriano manages to eek out some bombs when he goes on his streaks like he has recently...and end up with a couple more home runs than Sizemore. That said, Sizemore should end up with the better numbers overall for this season.
12-Team Yahoo! H2H Keeper League - 3-Sport Dynasty - Year 4 - Jonny D's Team
Keepers: Albert Pujols/Jose Reyes/Ryan Braun/Grady Sizemore/Evan Longoria/Tim Lincecum = SWEET!
#25 - Barry Bonds - 73, 762