"Swirl" vs. "whirl": when words spin in different ways

What is similar?
Both "swirl" and "whirl" refer to spinning or moving around in a circular motion and are often used to describe both physical movement and abstract phenomena such as thoughts or emotions.
What is different?
"Swirl" usually emphasizes gentle, smooth, or repetitive circular movement, often in a fluid or soft context (like water or wind), while "whirl" suggests a faster, more forceful, or chaotic spinning motion, and can imply a sense of dizziness or confusion.
Which one is more common?

Examples of usage
Swirl- The leaves began to swirl in the autumn breeze.
- She swirled the paint with a brush to mix the colors.
- Clouds of dust swirled around the car as it sped down the dirt road.
- The dancer whirled gracefully across the stage.
- His thoughts began to whirl after hearing the news.
- The helicopter's blades whirled loudly overhead.