Spiral vs Brimstone Love
Brimstone Love is very powerful. But so is Spiral. Prep-Time won't matter here since they are both from different dimensions and times. So they'll fight this battle blind.
Spiral is well trained in combat. Her sword skills are remarkable and her six arms give her a definite advantage. In a physical fight, combined with her enhanced strength and durability, she'll be difficult to beat.
But there won't really need to be a physical fight. Spiral is a powerful sorceress. And while she may need to perform lengthy and complicate dances to cast the most powerful of her spells, she'll only need to make quick gestures to battle Brimstone Love.
Any attacks he uses against her, Spiral can counter and/or avoid. And she has attacks that Love won't be able to do anything against. Spiral was able to take out the X-Men in their first encounter. In another fight, she quickly took down the Avengers with just a few gestures.
Before Brimestone Love can really do anything, Spiral could magically bind him, preventing him from moving, attacking, or even defending himself.
She could teleport him away. But since he's been seen to have teleporting power or technology, he may just teleport right back.
So she could just go for real attack and rob him of all of his powers. Even if it is only temporary, with no power to defend himself, Spiral can have her way with Brimstone Love. And the fight is over.
Spiral wins