While I've watched Index, I prefer the Railgun side of things. (so I know more about it!)

Favourite Characters:

• Mikoto
• Kuroko
• Ruiko
• Misaki

Favourite Arcs:

• Daihaseisai Festival (Railgun)
• Dream Ranker

Disliked Arcs:

• Sisters Arc
• Orsola Aquinas Rescue Arc
• La Regina del Mare Adriatico

Favourite Abilities:

• Mental Out (Misaki Shokuhou)
• Aero Hand (Kongou Mitsuko)
• Gunha's Ability (does this count? does now)
• Float Dial (Awatsuki Maaya)

Primary Ships:

• Mikoto/Kuroko
• Mikoto/Misaki
• Ruiko/Kazari
• Ruiko/Frenda

Secondary Ships:

• Mikoto/Kongou
• Mikoto/Ruiko
• Kuroko/Kazari
• Touma/Gunha (brotp is fine, too.)

I'm not a fan of:

• Mikoto/Touma
• Misaki/Touma
• Touma (in general, as a character)