Adelaide remains in the hunt for a top-four spot with a commanding 70-point victory over Port Adelaide in Showdown XXVII at AAMI Stadium on Sunday.

The Crows set up the victory with seven unanswered goals in the second term and held firm in the third before storming home in the final stanza with six majors to win 19.18 (132) to 9.8 (62).

The dominant performance saw Adelaide record its second-biggest winning margin against its cross-town rivals.

Defender Nathan Bock won the Showdown Medal while Brent Reilly, Andrew McLeod and Bernie Vince were high possession winners. And after a wobbly comeback against the Saints last week, Brett Burton stood up to kick four majors.

Kane Cornes and Dominic Cassisi tried hard throughout the match but the Power were well beaten across the ground.

While there was plenty at stake for both sides, it was clear from midway through the first term the Crows wanted it more.

They always had numbers at the ball, were winning the stoppages and had plenty of scoring options.

The Power lost Dean Brogan before the game but the contest wasn't won and lost in the centre circle. Mark Williams' team didn't work hard enough when the game was up for grabs and they never got their running game going.

Port blew an opportunity to move into the top eight, and its percentage took a hammering once again. But losses this round to Essendon and Hawthorn means they remain in the hunt for a finals berth.

But given their up-and-down form this season this scenario is very unlikely.

Port Adelaide made a strong start to the contest with Robbie Gray tackling Graham Johncock and earning a free kick only metres from goal while Danyle Pearce slotted a major from the arc in the first four minutes.

But Adelaide steadied and started getting their hands to the footy. Burton was dangerous, taking a high-flying grab and kicking two goals while Michael Doughty collected 11 touches.

The Crows accuracy let them down however and they went into the first break seven points down before finding their radar in the second quarter, booting 7.2 to 0.4.

An increased work-rate, a dominance in the stoppages and the Power's lack of pressure allowed them to score most of their goals on the run.

Port managed just six inside 50s for the term, were second to ball and too many of its prime movers hardly got a sniff.

In contrast Adelaide was on fire - a Patrick Dangerfield