My answer is pretty much the same as Kisota's, plushies on number 1 and then furbies and tamagotchis.
I loved to play with plushies, as if they were baby dolls, as if they were barbie dolls or as if they were pets. I had a really big collection at one point too. I told my parents to not tell me when they got rid of them, there was no way I could keep them all in any of my new apartments, but knowing that they were being thrown out was too painful. My old plushies are gone now, my parents only saved the ones they thought were most important to me and I have them in my bedroom and living room now. Mostly I am slowly building a smaller new collection though...