Anfield vs. Kingston Int'l Kindergarten

My baby is going to Kingston playgroup this Aug, I need to apply for pre-k program this Sept, and I'm still struggling between Anfield and Kingston.

I acknowledged that there is a 3-day and 5-day pre-k program at Anfield, I'm wondering the differences in the curriculum. And Kingston offers 5-day program, did anyone has experienced in these two schools