Backstrom was brilliant, especially considering that he was 36-37 at the time. Canada always seemed to have those unheralded players (compare with Henderson in '72) who came up big when necessary. BTW, Henderson himself obviously couldn't repeat the heroics, but he gave a good performance, I thought. He was more of a 'role player' this time (penalty killing etc.).
On the Soviet side, I would single out Kharlamov, Yakushev, Maltsev, Tretiak and maybe Vasiliev. Also Mikhailov, Petrov and Shadrin gave solid, if not spectacular, performances. It's also fun to see a very young Sergei Kapustin (I think he's one of the best skaters ever) play a few games. The commentators keep on praising Alexander Gusev, but IMO he was often a disaster on defense; for example, in the 2nd game he plays possibly the worst game of any class A player ever: not surprisingly he doesn't see any ice time in the 3rd period.
The '74 Soviets were a fine team, but I still much prefer the later teams. I think they were still light years away physically, and their forechecking wasn't very good. And they themselves were quite vulnerable to agressive forechecking. But that's just my opinion.