Claude seems promising, but after giving it a try two things stood out to me (I have previously used ChatGPT and Gemini):

1. I miss voice I/O more than I thought I would, in particular on mobile. Maybe because of how great of a job Whisper has been doing in the case of ChatGPT in particular.

2. Claude seemed hyper-conservative in ways that I would personally classify as annoying. Example: it refused to detail the plot of a ~60 year old book, claiming that doing so would infringe copyright (!). It relented only after I pointed out you can find the same information on Wikipedia.