With the cost of taking your equipment away with you it makes sense to consider what you might actually need for a week of riding so you do not take anything non-essential and have the hassle of lugging it around.
To make my life easier I have a list of equipment printed and then I do not waste time or space when packing my gear. This is not a definitive list, but it certainly helps me a lot and hopefully it could help relieve some of your packing stress. You could cut and paste this and adjust for your own holiday.
In Resort Kit List 1 Week Stay — Winter
Jacket x1– Thirtytwo Kaldwell.
Snowboard pants x1– Thirtytwo Wooderson.
Mid-level gloves x1 — Transform Gloves — Spitt Vader.
Cold weather gloves x1 — Transform Gloves — Photo Incentive Mitt.
Thermal bottoms x2.
Snowboard socks x6 pairs, or 3 pairs if tight for space.
Long sleeve tops/thermals x2 for riding.
Tall tees x2 for riding — uktalltees.com.
Thermal mid layer for cold days and evening attire - Thirtytwo Metcalf.
Neck warmer — Thirtytwo Douglas Neck Gaitor.
Beanie for under helmet and evening — 686 Standard Beanie.
My general layering is long-sleeve top/thermal with tall tee, mid layer then lightweight jacket. I may swap out my mid-layer with something less insulating as the winter moves into spring or strip off jacket for hiking or building jumps.
Snowboard — DOUK 153 Custom. One board for everything.
Bindings — Union ST (Med). Including a few small spares.
Snowboard Boots — Rome Libertine.
Small Rucksack for carrying water, suncream, board tool, bag lock — Dakine.
Board tool — Someones bindings always come loose.
Bag lock — So I can dump a bag and get some shred on.
Water Bottle — MISU Single Wall Bottle — Save cash and remain hydrated.
Goggles + low and high light lens— Smith I/O with Blackout & Blue Sensor.
Suncream SPF 30.
Helmet — Smith Maze.
Neat going out top x1.
Normal T-shirts x4.
Tracksuit bottoms for evening chilling and travelling.
One pair shoes for off snow and travelling.
Other Equipment to consider
Knee pads — Keeps you warm and helps prevent injury.
Massage ball — Help relieve any minor muscle problems.
4 way plug.
Laptop with charger.
Mini first aid kit.
Heavy duty cable ties x2 (in case of binding trouble).
I also take a load of additional equipment for splitboarding and providing a more rounded experience for clients, including various pieces of camera gear and servicing tools. I generally drive so its a lot easier to take extra kit. The above list should be a great start for you.