Same here. N64 was my very first console, although I got used to the SNES since my cousin had it and we lived in the same neighborhood so we always played DKC2, DKC3 and Mario World together. Therefore, I wanted a Donkey Kong game for myself so bad, so when my mom finally decided to buy me a console we had the option to choose between a PS1 or a N64, I chose the latter since they had Donkey Kong 64 on the shelves (circa early 2000). That was my very first game and I still have it and treasure it. Then I got several others including Rare-produced games such as Conker, Diddy Kong Racing, Perfect Dark and Killer Instinct Gold.
Banjo-Kazooie (and Tooie) were actually the last of the acclaimed Rare games that I got to play! I think I was like 17 or 18 at the time (2007) and It never got my full attention before that time despite being featured on the back of my N64 console box (it featured a handful of critics' choice games i.e. OOT, B-K, etc). I've always enjoyed collect-a-thons, so obviously I absolutely enjoyed B-K but moreso the characters, Kazooie is still my favorite female character because of her sassiness, sarcasm and sense of humor. Then I discovered Banjo Tooie which is my favorite game of all time. The deeper complexity, new abilites, levels, amazing OST and many other aspects are what make it so perfect for me. Banjo and Kazooie appearing in Smash would be my gaming dream come true, as i'd be able to play with my two all-time favorite characters (Banjo&Kazooie and Greninja).
As for the leaks discussion I won't lose my mind by reading all these "e-celebs" desperate attempts to get more followers. Gladly it all will end by tomorrow... until DLC discussion comes up (which makes B-K even more likely since if we gon't get them tomorrow we'll SURELY get them as DLC because they're the most requested characters as of now)