I've never been a Green Arrow fan. When I was a kid I was annoyed by his JLA membership. Most kids do not understand subtleties so to me he was a boring Robin Hood/Batman concept. Those feeling did adjust as I matured, but never quite went away.
Until Justice #10
Supergirl is mind controlled and holding family and friends of the Justice League as hostages. Green Arrow & Black Canary are on a covert mission to take Supergirl down with a kryptonite arrow. Clayface is chasing them down so they haven't much time.
I love John Stewart's heroic bravado at the end. Green Arrow saves my favorite Green Lantern so I guess now I'm a fan. To be honest, I love the GA from the Brave & Bold animated series.