Sunset seems like the fair kind of rival. The one that shows up occasionally to introduce some new mechanic or provide training for the player and such, all with challenging but fair battles.





Trixie is the one that shows up more as comedy relief, but still provide some challenge, until at one point towards the end, she suddenly becomes extremely powerful and kicks the player's ass.





Starlight is the kind of rival that doesn't show up until towards the middle of the game and doesn't start out as a rival, but eventually becomes hostile. Her battles are extremely difficult and has a puzzle element to it to trip up the player, even though it's all just mechanics we've seen before.