Lets see them. This is mine. The only problem is...I wasn't born until 1979. I was supposed to be a Christmas baby but I held out. They finally forced me into this world on January 6th. Nobody in my family could be bothered enough to purchase an ornament for the correct year. Maybe they thought I wouldn't notice.
I can not pick a favourite. I have collected my tree ornaments for decades and once the kids were born I started collecting at least one every year for each of them. There is not one on my tree that does not have some meaning or memory attached to it. I now tease them that they will not be able to take them when they eventually move out as they will not look after them like I do.
All of mine are like that too. No generic ones on my tree. Mine were either bought for a purpose. Given to me or hand me downs from our parents. I have a bunch of old glass ones that my parents got for their first Christmas together in 1965. I guard them with my life. They don't go on my tree anymore. I have them in a big glass jar that I keep out all year round.
I can't say that I have a favorite one now. When I was a kid we had a little elf that I made sure got his place on the tree. I guess that used to be my favorite.