Well, personally I started out with gemini (when it still was called bard or something like that) but switched over to a paid ChatGPT subscription.
Rooting for GPT and hoping for a GPT phone where the lock screen is where you interface with your AI Assistant / Agent. It also interfaces with other AI Agents (businesses, family members, friends, etc) to get things done for you automagically. You can skin your AI Assistant / Agent to look like whoever you want.