Randy is the only one that ever really gives me a good time. The others are too structured. Like, to the point with how much I've played I can easily predict what they will throw at me next. Randy, being totally random, keeps me on my toes.

I've debated this a lot with myself and have settled on Randy. Cassandra feels too "gamey" with its predictability and thus immersion breaking.

But this is a highly individual choice so best to experiment.