To add to my previous post, here are polls from Orr's prime:
1971 NHL coach's poll: Best defensive defenseman - 3 way tie between Bobby Orr, Al Arbour, Ted Harris
March 13th, 1971 NHL Coaches Poll - Toronto Star
1974 NHL coach's poll: Best defensive defenseman: Bill White. Runners up: Borje Salming, Jacques Laperriere, Rod Seiling, Dave Burrows
March 23rd, 1974 NHL Coaches Poll - Toronto Star
1976 NHL coach's poll: Best Defensive Defenceman - Larry Robinson. Runners up: Bill White, Denis Potvin, Dave Burrows, Terry Harper
Yes, Orr didn't play a full season in 1975-76, but that didn't stop coaches from voting him as the best skater and high in other categories.
February 21st, 1976 NHL Coaches Poll - Toronto Star
That's a fairly weak showing from "the best defensive defenseman of all time"