“different to” 與 “different from” 有什麼分別？

Different from被使用的最普遍，different than 為美式英語, different to 為英式口語，三種用法均為正確，意義均相同
以下抄於朗文字典 -- Longman
GRAMMAR: Prepositions with different
• You usually say different from:
Their home is different from ours.
• In American English, people also say different than:
Their home is different than ours.
• In spoken British English, people also say different to:
Their home is different to ours.