When you compare it to sports betting, experts say there's also a house edge...
False. And the fact that you didn't provide a link for that proves it. If someone says that he is not an expert.
So, I want to hear from you, what do you enjoy more? Slots or sports betting? What makes you choose one over the other?
In sports betting I have only made some occasional bets to take advantage of promotions and things like that. Slots if I have played more lately but I don't care about the HE. To try to get profitability from sports betting I would have to dedicate a lot of time to it, and for that I would go back to playing poker. On the other hand, what I like about slots is that I don't have to think. I take the money for lost and if I hit some big win I withdraw.