Ratings are updated every three months, and are based on measures, including
employment, construction, retail trade, house prices.
ASB chief economist Nick Tuffley says several factors contributed to Northland holding on to top spot.
"This quarter we were particularly impressed by the region's job growth, which topped the poll at 4.8 per cent year on year. The region was in the upper half for most other indicators too, like retail sales, residential construction, and house sales."
"It's a good comeback story for a part of the country that still has pockets of real hardship. We suspect the strength of the forestry sector, aided by solid demand from China, might be one factor that's helping."
Meanwhile, Otago was stuck to the bottom of the scoreboard for the second consecutive quarter, still suffering from the lack of international travel.
"The region's low ranking is a perfect illustration of the struggles faced by the
tourism-dependent regions of the country, with Queenstown still suffering from the lack of international travel," Tuffley said.
"Unsurprisingly, Otago locals weren't feeling as optimistic as the rest of the country and the region ended the quarter with the lowest level of consumer confidence."
Marlborough dropped eight places to second to last on the table.
The lack of tourists was also a big factor but building consents were Marlborough's weakest point, with big year-on-year falls in both residential and non-residential consents.
Elsewhere though housing supply and demand were high across the board, with residential building consents and house prices both climbing to new highs over the fourth quarter and continuing into 2021.
Auckland staged a recovery - up four places to ninth - after a tough lockdown affected performance in the third quarter.
The housing market was the region's source of strength, with annual growth in residential consents (+ 22 per cent) and house sales (+65 per cent) near the top of the pack.
But Auckland's non-housing indicators were softer, with employment growth, new car sales and retail sales nearer the bottom of the scoreboard.
The continued strong showing for Bay of Plenty and rise of Gisborne and Hawke's Bay - to sit at second equal on the table - was driven by a strong performance by the horticulture sector.
But housing was also playing a part in the lift of these regions at the top of the scoreboard.
"Solid annual house price growth and residential consents were the star of the show in the Bay of Plenty, and over in Gisborne, annual house price growth outstripped the rest of the country at 31 per cent compared with the same time last year," Tuffley said.
"Primary producing regions are really seeing the benefit of strong export demand during a period when some other industries are struggling, and we expect this trend to continue."
The seasonal worker shortage remained a source of worry, in regions like Hawke's Bay and Gisborne, Tuffley said.
But residents in both regions remained upbeat during the quarter based on consumer confidence data.
Canterbury lifted two slots but still lags at 13th place on the scoreboard.
"It's been a relatively soft performance for the region over recent quarters, and that remained the case this time around," Tuffley said.
Only its house sales were towards the top end of the rankings.
Wellington was one of the few regions where employment declined over the 12 months to December 2020, but the hot housing market kept it treading water at 11th on the table.