Treble Cone has a lot of vertical by Kiwi standards, and it has great terrain, but it only has a detachable six and a fixed quad, you must ride the six to reach the quad, and you must ride the quad to leave the basin it is in. Most of the best terrain is off the quad. This means early in the morning there are huge queues at the bottom of the six while everyone tries to get over to the quad. After that, there are typically large queues at the bottom of the quad for the rest of the day. Returning to the base from the quad means trying not to get killed by out of control intermediates on a fast and sometimes icy cat-track when the advanced slopes that allow a return to the six without riding the cat-track aren't open. (It is a resort field, make no mistake, so expect to be thoroughly gouged for anything you buy up the hill.)
The snowfall and depth figures are typically taken from the top of the quad, which is not representative of the rest of the field, due to the range in elevation and aspect. I've seen a 2.5m base on the summit slopes (top of the quad) but maybe 50cms of man made slush on the bottom 400ms of the six.
It really does have great terrain - when that terrain is open. One section of the field didn't open at all last season. When the snow is good, it really is one of the best places in the country to ski, but when the snow is middling or worse, there are better places to enjoy enjoy yourself.
It is 29kms from Wanaka, and the last 7kms of that are unsealed mountain road. Expect traffic to be incompetent and congested at that stage. There is no on-field accommodation. If you are traveling with someone who is a beginner or intermediate, they will likely not enjoy TC much as there is almost no beginner terrain and very little good intermediate terrain.
Cragieburn is one and a half hours from Christchurch in good conditions (roughly 110kms), and generally you'll want to stay in the lodge there overnight or longer. Lodging means bringing your own bedding and helping out with general lodge duties. Lodging fees include breakfast and tea (dinner) but not lunch although you can buy it up there. Bear in mind you're in essentially in the arse end of nowhere so there will be no quick trips to the local dairy (7Eleven) for anything you don't bring with you. Like many smaller fields, this is not resort skiing - you'll get out what you put in.
Last year they added a detachable six, the first detachable on the hill. It has three quads plus some conveyors for beginners. The base building is being replaced and will hopefully be done in time for the start of this season. Like Treble Cone, it suffers from queues; more lifts (three are accessible from base) help offset the hordes of punters visiting Queenstown - Remarkables is only 15kms from Frankton and is one of the five main resort fields in the South Island (Wanaka: Treble Cone & Cardrona, Queenstown: Coronet Peak & Remarkables, Christchurch: Mt. Hutt). The road is better graded and maintained than TC, but the typical driver is even worse. Parking space is limited (given the number of skiers) although they're trying to mitigate this with an extra parking area down the road a bit combined with a shuttle.
The terrain park is good, but with the exception of the Stash (rock and log features, etc) the one at Cardrona is better (better jump lines, in particular).
It doesn't have a lot of vertical so if you hate short runs, this is not the place for you, but there is a surprising variety of terrain for all abilities and most tastes there. Like Treble Cone, there is no on-field accommodation.
Mt. Olympus is a great place run by great people but it has the worst access road of any skifield in NZ, clubbie or otherwise. It is about 130km from Christchurch. Like Cragieburn, you'll want to lodge on the field, and it works the same way. All three meals are provided with lodging fees. The Blister Gear Review guys have been raving about it the last year or two so I expect it to become more popular the more people talk about it.
Broken River is about 100kms out of Christchurch, and again, like Cragieburn and Mt. Olympus, it's more practical if you go for more than one day and lodge there. Lodging is either self catered or can include breakfast and tea. Either way, bring your own lunch.
All three Arthur's Pass fields mentioned (Cragieburn, Mt. Olympus, Broken River) can get unpredictable but huge storm deposits. That can mean great skiing once you've finished helping dig the facilities out. It can also mean rain if the weather doesn't work out the way you'd like it to. Whether you can ski to the fields from the lodges depends on the field and the conditions but if you're afraid of a 5 minute hike you won't get the most out of these places anyway.
All five fields, as is common in NZ, are quite rocky and skiing them benefits from good coverage or blatant disregard for the well-being of your edges and bases. All five fields also have great touring and hiking options.
Last but not least, there are other great places to ski down under, so don't forget to shop around. The Chill pass can get you access to a whole bunch of non-resort fields, plus a couple of days at TC if you want it. There's also the North Island - no real clubbies to speak of (sorry, Taranaki), generally more ice and riming, more people (most of NZ lives in the north), but bigger fields, better spring skiing, and the dubious novelty of skiing on volcanoes without Japan's oodles of pow.
As suggested in another thread by @dustyfog, I have made a custom google map. It has pins for active skifields but not heli/cat operations. Invincible is not a heliski operation - it is merely accessible only by chopper. I have marked the Snow Park despite it recently closure because it was only closed in the last couple of years and there is some slight hope it might open again.
Screenshot of the map:
Edited by Yoichi - 6/13/15 at 1:53pm