
So this is what I’ve wanted to talk about for so long. Which one is more canon? Or which one makes more sense storywise?
Valeria, generally a fan favorite. Here's why:
If you choose Valeria, she can reunite with Anita (her rival) and perform a Unite Attack that would otherwise be unavailable if you chose Kasumi. They can also have a minor interaction if you bring them together.
Valeria is generally stronger in war battles because she uses cavalry.
Valeria also possesses a rare rune, held by only 4 (5 if you count the master) people in the Suikoden world, called the "Falcon Rune."
As for Kasumi, she's less favorable among fans, but I always choose her over Valeria. Here's why:
If you choose Kasumi, you can go to Rockaxe Hamlet and get both Sasuke and Mondo faster, even before fighting "you know who," the mid-boss. You also get a cute interaction with "the previous hero" if you bring her along when doing "his" side quest. Even though it's a small scene, it's a whole new scene, not just some interaction.
She's an archer in war battles, making her less useful than Valeria, but tbh, I really don't care.
She possesses the Shrike Rune, which is more common. But her biggest downgrade is her attack range. For some unknown reason, she's an L-range character in Suikoden I, but in Suikoden II, she becomes an S-range character.