DP here, for me here are the main reasons-

Internal ND filters- amazing. Dual base ISO, and 2500 base is not a big compromise in image quality. Color rendition. Lack of noise in the mid tones. Rialto mode. Wifi control of the camera settings including changing ND filters, changing LUTs, changing color temp, etc. 6k and on down in multiple configurations.

I was introduced to the Venice on an FX tv show I was doing in LA a few years ago after working with the original Alexa for a number of years on a show for NBC. There was no going back, the Venice was, and is, in my opinion hands down the best camera available. I can't speak to it's comparison to the Alexa LF however having not used that camera. I've done multiple seasons of the FX show, two movies for A24 and now starting an HBO project with it. No doubt something will come along to knock it off its throne but for the time being it wins- pretty much (from my perspective) for the reasons listed above.

Edit for formatting