Favorite to least:

1. Tamers
2. Adventure 01
3. Fusion
4. Frontier
5. Adventure 2020
6. Data Squad
7. Adventure 02

If I saw Ghost Game I would likely put it below Adventure 02, and if I saw Tri it would go in the cave beneath hell. (No offense to anyone who likes either)

Opening themes:

1. Frontier
2. Adventure 01/02/Tamers
3. Adventure 2020
4. Data Squad
5. Fusion

Disintegrations:

1. Adventure 2020
2. Adventure 01/02
3. Fusion
4. Tamers
5. Frontier
6. Data Squad

Favorite characters of each:

• Adventure 01 - Patamon
• Adventure 02 - Veemon and Patamon
• Tamers - Renamon
• Frontier - Swanmon
• Data Squad - Yoshi
• Fusion - Shoutmon, Cutemon, and Dorulumon
• Adventure 2020 - Patamon

Favorite villains:

• Adventure 01 - Myotismon and Piedmon
• Adventure 02 - MarineDevimon
• Tamers - Makuramon
• Frontier - Mercurymon
• Data Squad - Merukimon
• Fusion - Splashmon
• Adventure 2020 - Argomon leader