Calgary beefed up its defense last month by acquiring Hamonic from the Islanders. With Giordano, Brodie, Hamilton and Hamonic, there is a growing expectation for the Flames' top-four defense group to rival that of the Nashville Predators for best top-four in the NHL.
The Predators, who were the second wild card in the West last season, reached the 2017 Stanley Cup Final.
Stone and Matt Bartkowski are projected to be Calgary's third defense pair.
"I think we've got probably one of the top defensive corps in the League now and a pretty good goalie [Smith] in there too," Gaudreau said. "[The Predators], what they did so well in the postseason was have their 'D' jump into the play. For our 'D' at least, I think that's something they can do."
If they do it well, the Flames should also be able to keep up in the reenergized Battle of Alberta with the Edmonton Oilers, who got one step further than Calgary last season by reaching the Western Conference Second Round, where they lost to the Ducks in seven games.
Gaudreau said the Oilers' ascension toward the top of the NHL puts pressure on the Flames to keep climbing.
"The Battle of Alberta, it's been getting more and more interesting," Gaudreau said. "In the past years it hasn't been as interesting, but now I can feel the energy in both buildings and it's exciting to be a part of. It's exciting to bring that Battle of Alberta back, bring that passion back."