Chopper here for me and honestly it should be a no brainer.
Conn Smyth Trophy, 5th all time in games played, 3rd in points, over a PPG as a defenseman in the regular season and playoffs.
37th in the Athletics top 100 -
https://theathletic.com/3935794/2022...9-al-macinnis/ (Iggy was 34th - so shows how close those two are in terms of legacy and impact).
IMO he didn't leave on as bad terms as others either. He signed an RFA offer sheet and the Flames decided not to match and worked out a trade. Sucks but really it was just an issue of being a small market team at the time.
Based on just on-ice performance for the team he's the second best Flame of all time, slightly behind Iggy and ahead of Fleury and Giordano.