Robin has always been my favourite character. Loved Dick Grayson when I was a kid and appreciate his evolution and growth.
Jason, at the start, was a faint copy and his best moment in the role was in Death of the Family.
Tim is the perfect Robin, the one i loved the most and who best fitted the role. Tim and Bruce dynamic was flawless, exactly what Batman and Robin should be.

And then came Damian...
Robin role changed it all one for good. Giving the role to the son of batman they crossed the line, they've changed the core of being Robin.
Damian is a great character, but he never should have been Robin, not Bruce's Robin.
Morrison knew that very well, sure enough he gave him the mantle to be Dick's Robin, not Bruce!
Robin's character is dead, at least for what it has represented for 65 years.

Duke is not Robin, he's something better AHAHAHAHAHAHAHAHAHAHAHAH.