It'd be a clash between Gen 2 and Gen 4.

Gen 2 was amazing. It expanded on everything Gen 1 had. What isn't to like?

I was a HUGE fan of Gen 4. I only wished it gave a little more after game content. I always thought that after Gen 2, you should have access to regions like Kanto or Johto for more gameplay and challenge. For some reason though all you get is that tiny island. Which was really lame. I was a huge fan of the contests, Pokemon, and Gym Leaders. Piplup being my absolute favorite.