The pair were the second and third most popular captains last week and ahead of Sunday's home fixture against Brighton & Hove Albion, who are without a win since Gameweek 2, Sam believes it is Kane's time to shine.
"It's hard to pick between them, they are both good options, but I just fall in Kane's camp this week," she says in the latest FPL Show.
"The way that we play will benefit him and there's more chance of a mistake at the back that might lead to a penalty, and therefore Kane might be a better option than Son."
Sam's husband Lee, the other half of the FPL Family, currently has Liverpool's Mohamed Salah (£12.4m) as his choice. But he is concerned about Saturday's match against West Ham United, who are unbeaten in four matches.
"I look at some of those West Ham defensive stats, and the teams that they've come up against," explains Lee. "They've had some tricky fixtures, but the stats still look good and they are still performing well.
"It won't be an easy game for Liverpool."
Don't get caught out. The Gameweek 7 deadline is at 18:30 GMT on Friday 30 October.