For those who fear the AFL season is beginning to look like a Brisbane benefit, there are encouraging signs from the City of Churches.

Adelaide talisman Andrew McLeod booted three stunning third-quarter goals to end the brave resistance of West Coast in a 33-point win at AAMI Stadium on Sunday.

And Port Adelaide made light of the absence of injured big men Warren Tredrea and Matthew Primus to beat Carlton 17.12 (114) to 12.12 (84) at Optus Oval.

With only the Easter Monday clash between St Kilda and Richmond still to be played, Brisbane sits in a familiar position atop the ladder on 14 points.

Adelaide and Collingwood are second and third respectively with 12 points, half a game clear of the Kangaroos.

The 14-point victory over Collingwood at a sold out Gabba on Thursday night meant the Lions successfully negotiated a difficult first month of the season without losing a game.

Coach Leigh Matthews will be determined not to let his players get too far ahead of themselves.

But with upcoming matches against the Western Bulldogs, Geelong and Sydney, it's the round-eight clash with the Crows that shapes as their next major challenge.

McLeod and skipper Mark Ricciuto were the match-winners in Adelaide's 15.16 (106) to 10.13 (73) win over West Coast.

"(McLeod) has been in pretty good form so far this year and he was terrific today with his efforts in the third quarter," said Crows coach Gary Ayres.

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