I can only comment on those 3 and only about their latest video
I feel like Lilsimsie's video is way more interesting (behind the scenes, building official houses) than James' and Deli's videos where it's just taking care of 7 infants, which we all know is gonna be hard and that's it, like they didn't show any new content per say ? I know infants is new content but if you're just showing your sim struggling to take care of them, it's not so much different than toddlers... James' video is just him complaining about the sim not doing what he wants him to do and Deli's I don't know because I couldn't be bothered but I know she messed up in the first two minutes with the personality choice and didn't even notice.
Also, I feel like a lot of people who watch Deli also watch James and vise versa since they're a couple, and they both made the exact same video (which I don't really get).
On another hand, I really don't understand how people can handle lilsimsie. The way she talks is SO annoying and her eyebrow movement is so weird, I can only handle watching her for 5 minutes...
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It's interesting what Lilsimsie is saying about what happens when EA asks you to build houses for their new pack (yes, I am struggling but I am watching). Is it me or it doesn't make any sense ? They asked her to build a house with literally no surrounding lots/fake houses, which makes it really hard to choose a style to go with (lilsimsie says it). Then, they asked her to build a house that was 22k max, but they didn't give her access to the new items' prices ?!