Rider 1/Rider 2, V3/Riderman, Stronger/Tackle.

Huh. There's an idea. A KR Tourney that goes by Era. Best Hensei, Best Showa.

It also means that 50% of the votes wouldn't be "I don't know [Showa Rider] that much, so I'm just voting for [Heisei Rider]", which would be nice.

And 3rd place for ROTY Tournament is...KUUGA! This means in upcoming competitions, OOO, Kabuto, and Kuuga are not going to participate, and that other riders can challenge them for their titles next year.

No. I mean Showa v Showa and Heisei v Heisei.

That's what I meant.
But having the Showa riders actually face other Showa riders, the votes won't almost unfairly sway towards Heisei.

Because matches where characters like Stronger, Super-1, or Amazon should have won they lost, with a good chunk of the reasoning being "I haven't seen his show."