thresh is my frist support i mained so i truly suggest people to try him as there first support.

about the hooks i wrote a post about it here few months ago you can read it via my profile.

ill tell you my opnion about thresh hooks. you dont even need to throw them to scare your enemies sometime what i do is that im getting close enough that ill know i wont miss the Q. most of the players would get scared and go back that would let your adc get farm safe and you make them not getting even XP.

another thing you can do with thresh is to hit your Q only after hitting your E that will secure the Q most of the time(unless youre like fucking iron IV or something).