I barely remember my first bike. It had solid rubber tires and no freewheel, so if it was moving, the pedals were going around. Today, I guess they would call it a "fixie", and hipsters would teach their kids to ride on it. It wasn't much of a bike, and I didn't ride it much.
My dad had a 3-speed Hercules that he used to ride into town to work. After a couple of years, he moved up to a Raleigh and passed the Herc on to me, so that is what I think of as my first real bike.
When we moved into town a couple of years later, most of the kids in the neighborhood rode Raleighs. There were a few Schwinns and other balloon-tire bikes, but for some reason, this neighborhood preferred the Raleighs, with an occasional Dunelt or Robin Hood. Mine was the only Herc. I rode it everywhere, and could outrun all the kids in the neighborhood.
I was an indifferent athlete, so I have to give credit to the 17-tooth cog on the Herc-o-Matic planetary hub. The Raleighs all had Sturmey-Archer hubs, which typically came with 18 or 19-tooth cogs. Of course, I didn't know any of this at the time, I just knew my Hercules was the fastest bike in the neighborhood, until kids started getting 10-speeds.
We used to spend a lot of time down at the railroad tracks. That was where the kids with the American bikes had the edge. There was a lot of traprock along the tracks. The big balloon tires handled the rock and the gravel service roads a lot better then the skinny-tire 3-speeds.