The ad, by the creative team of Amber Casey and Dan Hubert of Rainey Kelly Campbell Roalfe/Y&R, shows five rugby players holding up tackle pads in front of them to form the shape of a Land Rover. It carries the strapline: "Built to tackle anything."
Simon Learman, Anna judge and executive creative director of McCann Erickson, said: "Wonderful photography eloquently describes the meat of the idea. And I like how the line goes on to complement the image in a confident, understated and playful way.
"It is of course, supremely topical because of the Six Nations' competition. But I also detect the faint whiff of defiance in the face of [London mayor Ken] Livingstone's purge on the hyper-protective Chelsea Tractor."
Rainey Kelly topped a list of five ads nominated for February's award.
Wieden & Kennedy took three nominations with its ads for Honda, while the other nomination went to Bartle Bogle Hegarty for its "bear and fish" ad for Vodafone.
Wieden & Kennedy already had one nomination this year, as another Honda ad was the January winner.
Learman said: "Honda has cornered the market with illustrative loveliness. I rather like those playful quizzes."
The Annas offer a £25,000 prize for the creative team behind the ad judged the best of the year.