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.
I enjoy this event a lot, i am getting a lot of candy for pokemon that i usually cannot get candy for unless i visit a nest or hatch eggs.
The extra XP helped me to reach lvl 35, but i am not motivated to push hard for a higher level, 35 is basically good enough. It is more about dust and candy now, the high power-ups require ridiculous amounts of dust and candy and deliver little CP.