I have a question regarding making istighfar 70x. What is the difference between saying “Istaghfirullah” versus “Istaghfirullah wa atabu ilayhi” versus “Istaghfarullah wa atabu ilayk”?? Does one reap more benefit and rewards then the others? I like to make istighfar 70x throughout the day so which one do I say?

Astaghfirullah is sufficient but Astaghfirullah rabbi wa atubu ilayhi is better