Ok so if one gets married from Abroad and has a choice of a few guys how would you pick one???
As you don't know them you can't really go by personality so should one go for the best looking.
Btw i know looks are not everthing but as i said it's difficult to pick by personality.
I would make dua and ask for guidance. Consult my heart. :)
Get your family to talk to the people who know the prospective partner about him, his family, his personal habbits, his career, Islamically, his background etc.
Found out where you will live after marriage and roughly what the lifestyle would be like. Ask him his rough plans for the future. Find out about how his relationship is with his parents and siblings. What will his obligations be to them in the future i.e. will he want to live with his parents?
Find out about your Mother-in-law and what her temperment and character is like. Very very very very important! Hehe!
There would be so many things to consider and I have just listed the few that came to mind.
Keep your eyes and mind open and take your time in deciding. :)