All good and fun teams with excellent teamwork. Kratos can even work with characters like Radec, that's how awesome he is. Radec's neutral triangle and up circle are godly at locking opponents down during Kratos' level 3.
Special mention: Ratchet + Dante
Ratchet can help Dante start his loop with his sniper, causing buttdrop for the opponent. Ratchet can also save/cover Dante if he misses or is vulnerable from missing an attack. And Dante can finish an aerial combo with a knockdown, while Ratchet below uses Lvl 1 for an easy and cool-looking confirm.