Possession of an object

Saying I have something in my possession, in this case, 3 pieces of luggage. I have three possible verbs:

1. みっつ荷物が持ちます。
2. みっつ荷物が有します。
3. みっつ荷物があります。

Which one is best?

Thanks, Robert

(3) is best. But it's more natural to have this word order:
荷物が三つあります

(1) is grammatically incorrect. "持ちます" (mochimasu) means "to hold" or "to carry," but it's not used in this way to express possession.
(2) is a very formal way to say "to have" or "to possess," but it's not used in everyday conversation and doesn't fit this context.