2 or 3 year age gap?

Just musing here. I had babies in the spring of 2023 and 2024 and we are starting to think about #3. Although I know things can change, we've been able to get pregnant super easily and were able to plan both babies.

Because of my husband's work situation, it is best for us to have babies in the summer, either 2026 or 2027. Would it be better if they were 4 and 3, or 3 and 2? 3 years seems like such a big age gap when you've had 2 (way) under 2 (13 months apart).