That’s not to say I won’t write in third-person if the story calls for it. If I happen to think of a story idea that involves multiple POVs and it simply makes sense to go for third-person, then I will. But I figure, why purposefully go for third when I tend to write better in first? Why fight my nature?
I realized this same type about myself a while ago regarding the audience I write for. At first I wrote adult stories, then realized very quickly I’m naturally better suited for a younger audience, so I wrote in the young adult genre. But turns out I have more of a natural middle-grade voice, so now I write middle-grade, and I love it. Why fight it, you know?
But again, that doesn’t mean I won’t write outside my natural comfort zone(s) should the occasion arise. I plan to start writing my adult superhero story (now that I’m nearing pre-planning completion), and we’ll see how that goes. But I’d say that, in general (as there are always exceptions, of course), write to your strengths and what feels natural to you.