That's a tough question for sure. While Ivystar was a harsh leader, she was always willing to do whatever it took to help Riverclan. Jaystar is a bit more merciful and kinder, but I haven't seen him do much decision-making, so I can't say for sure.
I didn't see too much of Ivystar, honestly. She was stern, but fair. And Jaystar is a great leader! I'd say Jaystar, just because he's awesome.
Jaystar by far. Ivystar took hostages, she went into war, she took all of Windclan's prey and herbs! She took Thunderclan's medicine cat as a hostage! At least Jaystar allowed me to redeem myself.
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WCC's Resident Wingwoman and Third Wheel*Queen of Spur of the Moment Decisions
Can be contacted through Discord * Talk to my cats in Starclan * Will use Starclan cats for Moonstones if you can't find someone