Happy to continue this conversation if we are going to offer serious suggestions. Let's be clear a tagger is a shut down player that sacrifices their game and stats to shut down an opponent. Let's not confuse a tagger as a midfielder that runs both ways, which is what I'd classify Free and Bond. I still thank that's an unfair label on both as taggers, Bond for me was more of a wingman anyway.
Duncan Kellaway a tagger? He was a defender. A great one, and Wayne Carey's bunny.
Daniel Jackson was a tagger absolutely but to suggest he's better than Graham is not something I don't agree with. He's not far off in terms of ability but Graham has better runs on board in finals.
Chris Bond and Tony Free weren't taggers, at absolute best 2 way running midfielders as mentioned before
Regardless there isn't any clear obvious ones, so I think suggesting he's our best ever tagger is a fair shout, not that there is a huge pool to choose from. Doesn't mean I rate Graham and want to give him a 5 year deal. But I think the comment is a fair one.
