I vote for the first, though it was an introductory, they show the whole path, how much they improved, all the people who were better than them and how they somehow beat them with heart and determination. Also, it included intense battles, and more bit beast fights
Season two, It's not horrible, i just hated the beyblades in the beginning cause they always looked like they were about to fall over, and it wasn't that intense. There wasn't much of a story line, and in the end, they kinda rushed the competition in like 5 or 6 episodes. Even though Im a girl, I was kinda shocked by how many other girls just showed up in the season. XD
Season 3, was better, especially with Daichi. And they went back to the original point where they had to train and work as a team. Though Tyson kinda lost his head in it, he got back. The only thing I found upsetting was how there were barely any bit beast in it, and no Dizzi
It's like they all just disappeared!!