Whole of the Water event, one Totodile. Whole of the Grass event, 2 Chikoritas. First 18 hours of this event, 24 Cyndaquils. Heck yeah. Almost got enough Houndour Candy for a Houndoom too, and I'm stocking up on Charmander Candy for another Charizard and powering up.
Not noticed an increase in Ice types, but then there would need to be nothing but Ice types for me to notice it as we're already overrun by Swinubs, Jynxes, Sneasels and Shellders round here.