With mounting pressure with researching campervans or RVs in New Zealand, let me break things down for you.
First, an RV will save you time because there is no unpacking and moving from Airbnb to another Airbnb. You will also have the luxury to sleep/wake up in nature but you would need to brave the elements and sleep in a windy car park. If braving the elements is not your thing, I would only recommend Wilderness Motorhomes if your plans fit the little drop off and pick up locations they have.
If you like to go budget and fly in and out of Christchurch or Auckland only, you may have a look at Lucky Rentals. Their service isn’t the best but you pay for what you get in this case.
Below is the list of campervan / RV companies in my research, highlighted in bold are the ones I have used personally before with some underlined ones I’ve seen on the road.
North Island
For flexible pickup locations and largest families (https://www.starrv.com/nz)
Flexible and accommodating
( https://www.britz.com/nz/en/ )
Superior quality with limited drop-off locations
( https://www.wilderness.co.nz/ )
Great way to go green
( https://www.jucy.com/nz/en )
Going the Budget way
( https://www.luckyrentals.co.nz/book )
Cheap and Cosy for 2
(https://www.wickedcampers.co.nz/ )
Maximum for 2 with Auckland Pickup Only
(https://www.madcampers.co.nz/book-now)
Not recommended but it is available
( https://campervanvillage.com/ )
South Island
For a unique experience (https://www.mattanddanscampervans.co.nz/vans)
For flexible pickup locations and largest families (https://www.starrv.com/nz)
Flexible and accommodating ( https://www.britz.com/nz/en/ )
Superior quality with limited drop-off locations ( https://www.wilderness.co.nz/ )
Great way to go green ( https://www.jucy.com/nz/en )
Going the Budget way ( https://www.luckyrentals.co.nz/book )
Good but Christchurch is not available ( https://www.southerncampers.co.nz/cheap-nz-campervan-hire-our-campers.html )
Maximum for 2 with Christchurch Pickup Only (https://www.madcampers.co.nz/book-now)
Not recommended but just putting it out there ( https://campervanvillage.com/ )
Looking for more information about holiday homes/campgrounds in New Zealand? Check out this video.