Ray Bourque is my all-time favorite player and to me he's the 2nd best D-man of all-time, behind Bobby Orr. Personally I find Bourque more underrated than overrated, especially now 20 years since he retired. His numbers, his consistency, his longevity. He was a complete player, could do it all.
Up until a few weeks ago, Bourque had landed more shots on goal than any other player in the history of the league. The fact he played in an era against both prime Gretzky and prime Lemieux and was obviously overshadowed by both. Robbed of a Hart Trophy in 1990.
But he's not Top 10 player all-time. The only D-man I consider Top 10 all-time is Orr. I don't have any goalies in my Top 10 all-time list either. This was my list I posted on the main board a few days ago. In no particular order.
Orr
Gretzky
Lemieux
Jagr
McDavid
Crosby
OV
Rocket
Beliveau
Howe
As a D-man Orr is in a tier by himself. I'd argue so is Bourque in a tier just below. I don't know if any other D makes my Top 20. Maybe Eddie Shore but it's hard to say considering I never saw Shore play.
Then below Bourque it could be any one of a pile of guys. Shore, Harvey, Potvin, Lidstrom, Pronger, Park, Robinson. Even Chara who may be the best defensive D-man of all-time. If not for Karlsson's dip in performance prior to this year he'd be in that conversation. I get the Cale Makar hype but he's no Bobby Orr but will likely challenge for a Top 6 D-man all-time spot before his career is said and done.