What's Your Favorite LLM –and Why?

There’s no shortage of large language models—ChatGPT, Claude, Perplexity, Mistral, Gemini, and more. Each has its strengths and quirks. I’m curious: which one do you find yourself using most often, and what makes it stand out for you? Is it accuracy, speed, personality, features, cost, or something else entirely? Looking forward to hearing your experiences and insights.