Refers to a person's body shape or physical build, often in the context of appearance or fashion.
She has a nice figure, doesn't she?
最近、スタイルを気にして運動を始めた。
Lately, I've started exercising because I'm concerned about my physique.
Broadly used for fashion, design, manner, or way of doing things, similar to English 'style'.
彼のファッションスタイルはいつも個性的だ。
His fashion style is always unique.
この店のインテリアスタイルが好きです。
I like the interior style of this shop.
She has a great figure, like a model.
He took years to establish his own style.
I exercise every day to maintain my figure.
The party was held buffet-style.
スタイル is a neutral word for someone's overall figure or build, while ナイスバディ specifically praises that figure as attractive.
スタイル refers to overall style or manner, while フォーム focuses on the specific technical form or shape of an action or document.
stylebook; fashion book