Title says it all. How do you think Terry would interact with each Bat character - hero or villain - in the main universe?
He Gets Along With Them
Bruce - Less grouchy and aloof than the one from his universe.
Dick - The one member of the Bat family pretty much every hero (and even a few villains) gets along with.
Tim - I can see him being a bit protective of him given what happened to the Tim in his universe.
Cass - Both are atoners.
Steph - She's pretty easy to get along with as well.
Barbara - Already friends with her in his universe and either the pre or post Flashpoint versions would work.
Not Sure How He'd React
Jason - WHile both where former criminals, I think Terry might be bothered by some of Jason's more extreme methods.
Damien - Might remind him too much of his own little brother, Matt
Selina - Her criminal tendencies he might be less forgiving of.
Outright Hate
Pretty much all the villains particularly Joker, Harley and Ra's.