Threading template hits

Hai,
I am a new user in I-Tasser performing ab-initio modeling for a hypothetical protein(uncharacterized one) and I have a doubt in the result page. It would be helpful if you could clarify the same
Among the top 10 threading template hits given, which among them should be selected and based on what criteria. Whether identity score should be given more weightage or the Z score? Please clarify as I am confused here.