I am definitely an older gamer. My favorite is anything Zelda. I remember a system called "Odyssey." It was a tv sized console by Magnavox that offered such mind-blowing excitement as tennis! It was literally a dot that you swatted back and forth across the screen. :p We've come a looong way! :D
I have only played the 1st. one and New Leaf. I really like New Leaf the best. There is so much more to do, and the graphics are great! However, I am considering re-visiting the first one.
Don't know about the worst game of all time, but imo...IMO, Twilight Princess is the very worst official Zelda game! It's dark, there are no octorocks and many of the characters just didn't speak "Zelda" to me.