Summer study in Australia vs Dual enrollemnt study at community collge?

Which will look better?

 

My ultimate goal is a PhD.

The Student Ambassadors sent me mail inviting me to "study" in Australia. Saying It will set me apart on college applications and considerations for other honors. I know It's legit because someone else got invited last year.

But I already had plan to gain college credits by doing duel enrollment and starting so this immediate summer.

I want to know would such an experience really help me out getting into a school(UF) as opposed to doing dual enrollment and gaining college credits.

Here Dual enrollment enables me to graduate highschool with an Associates degree. I find this advantageous as i'd only have 2 years left of a bachelors then I could carry on to a PhD. I can do dual enrollment along the school year I think also, though.