What is the best weapons and armor to have when you fight the twin sisters in Portrait of Ruin

If you're planning to beat Stella and Loretta, you should use Jonathan ONLY.

Weapon: Flame Whip or Agni's Flame
Sub-Weapon: Javelin(especially if you've mastered it)or Knife.
Body: For attack equip Biker's Jacket. For defense equip Samurai Plate
Head: Attica Helmet
Leg: Samurai Leggngs(note the spelling mistake!)
Accessory 1: Paludamentum
Accessory 2: Assasin's Cape
Co-Op Move: Holy Lightning

They are both weak against Whip, Sword and Fire. They are both strong against Ice. Unlike Loretta, Stella is weak against Lightning.

Keep in mind that if you want to obtain the best ending, you must use Charlotte's Sanctuary spell.
Just ask or post a message on my message board for any help on that.