Jacinda & Simon: Preferred PM Comparisons

(1) TV1 Polls conducted at same stage during First Term of New Govt
(Released as close to the 20.5 Month mark as possible)
In order of Strongest to Weakest PM lead over Oppo Ldr
Post-2017
(Colmar Brunton Early June 2019)
PM Ardern 45%
Oppo Bridges 5%
Other Collins 6%
Other Peters 5%
PM Lead over Oppo Ldr 40 points
Post-2008
(Colmar Brunton Early August 2010)
PM Key 45%
Oppo Goff 9%
Other Clark 3%
Other Peters 3%
PM Lead over Oppo Ldr 36 points
Post-1999
(Colmar Brunton Mid August 2001)
PM Clark 38%
Oppo Shipley 14%
Other English 5%
Other Peters 3%
Other Anderton 3%
PM Lead over Oppo Ldr 24 points
Post-1984
(Heylen Early April 1986)
PM Lange 31%
Oppo Bolger 13%
Other Muldoon 19%
Other Quigley 4%
Other McLay 1%
PM Lead over Oppo Ldr 18 points
Post-1990
(Heylen Early July 1992)
PM Bolger 13%
Oppo Moore 17%
Other Peters 23%
Oppo Ldr Lead over PM 4 points
(Other Lead over PM 10 points)
Summary (TV1 Polls):
PM
Ardern 45%
Key 45%
Clark 38%
Lange 31%
Bolger 13%
Oppo Ldr
Moore 17%
Shipley 14%
Bolger 13%
Goff 9%
Bridges 5%
PM Lead
Ardern by 40 points
Key by 36 points
Clark by 24 points
Lange by 18 points
Bolger 4 point Deficit
(2) TV3 Polls conducted at same stage during First Term of New Govt
(Released as close to the 20.5 Month mark as possible)
In order of Strongest to Weakest PM lead over Oppo Ldr
Post-2017
(Reid Research Early June 2019)
PM Ardern 49%
Oppo Bridges 4.2%
Other Collins 7.1%
PM Lead over Oppo Ldr 44.8 points
Post-2008
(Reid Research Early August 2010)
PM Key 48.7%
Oppo Goff 7.4%
Other Clark 2.3%
Other Peters 3.7%
PM Lead over Oppo Ldr 41.3 points
Post-1999
(CM Research Early August 2001)
PM Clark 34%
Oppo Shipley 10%
PM Lead over Oppo Ldr 24 points
Summary (TV3 Polls):
PM
Ardern 49.0%
Key 48.7%
Clark 34.0%
Oppo Ldr
Shipley 10.0%
Goff 7.4%
Bridges 4.2%
PM Lead
Ardern by 44.8 points
Key by 41.3 points
Clark by 24.0 points
TV3 Leader Performances
(Post-2017 vs Post-2008)
Performing Well or Poorly ?
PM
Ardern: Well 72.5% Poorly 15.6% Net + 56.9
Key: Well 69.9% Poorly 15.9% Net + 54.0
Oppo Ldr
Bridges: Well 17.4% Poorly 56.0% Net - 38.6
Goff: Well 30.9% Poorly 43.9% Net - 13.0
Although I don't have Clark's precise Leader Performance figure for the appropriate poll (Early August TV3 CM Research 2001) ... various sources suggest her "Performing Well" score was fluctuating in the 50s throughout 2001. She reached her peak popularity in this measure during her second term, following the big Election victory of 2002. I'm pretty sure her highest rating was the 72% well / 13% poorly split in April 2003 (Net: + 59)
So, I think it's fair to say that Ardern's Leader Performance ratings for this precise point into the first term (20.5 months) are unprecedented, albeit (as with most of the measures) just a little ahead of Key.