Oh hell, like I can remember that far back.
...Oh wait, my first game was Yellow. That sure makes it easier.

Pikachu / Pidgeot / Primeape / Charizard / Blastoise / Venusaur
Meganium / Ho-oh / Machamp / Girafarig / Gyarados / Piloswine
Sceptile / Gardevoir / Slaking / Mawile / Crobat / Castform
Torterra / Honchkrow / Golduck / Weavile / Azelf / Dialga
(Goddamn was the Sinnoh Pokedex shitty before Platinum)
Serperior / Stoutland / Conkeldurr / Darmanitan / Gothitelle / Galvantula

These could be completely wrong. I can't remember if you could get the legendary trio in G/S before the E4 or not but I know I used them at one point because I was lazy.

Not pictured: my HG/SS team that was my only really great team.

Very first hall of fame? Typhlosion in Silver. Anyone else was basically just for HMs and I don't remember who exactly I had. But Typhlosion did literally all the work.

In fact, that's how all my games went until Pearl.

the only two that I can remember having on my team clearly are Alakazam and Nidoqueen.
They're some of my favorite pokemon.

I do know in emerald I had a Slaking and a Spinda.

Ok, this'll be hard, I gave away all of my old copies of games.
All I've got on me now is Red and White.
Gonna borrow >>25027 chart idea.

This is about as much as I can remember honestly.
No idea why I brought a lvl 15 Clefable to the league in Red.