Soulo

For alpine, windy or snowy conditions, nothing beats a Hilleberg. Pricey though. Akto is my favorite one man shelter of all time (tunnel style). Soulo for a freestanding one man, but with a significant weight penalty. The Rogen is a sweet freestanding two man design. Has more airflow than some of their other models, but will handle wind like a champ. Excellent weight/space/weather compromise.

Lightweight and strong are always going to be somewhat at odds with each other. The more you go towards one side, you compromise the other. Personally I’m a big fan of the Hilleberg Akto. It’s light enough but a very strong proper four season tent. I like mine a lot. In the Hille range you’ve got the Soulo which is a step up in strength but heavier, and something like the Enan which is lighter but less robust. IMO the Akto hits the sweet spot for four season UK summit camping. Someone above mentioned the Tarptent Scarp which is a similar kind of tent. The Fjallraven Abisko also falls into the same bracket. None of these are cheap but they are brilliant quality and brilliant strength to weight ratio.

Hilleberg Soulo or Staika tents. I have both - easy to set up and bombproof. But expensive - hand made in Estonia for Hilleberg.

Would go Hilleberg. The Soulo has poor ventilation. The Akto has way better ventilation and also much lighter. The downside being head space. The Nammatj 2 I just awesome, and it too has very good ventilation, the downside being it's much heavier at 3kg.

Pretty much all of the Hilleberg red and black label. Nallo and Soulo are classics. Nallo has more space for its weight and the GT has a wonderful vestibule. Soulo is the strongest 1 person and if you want to go overboard with the strength and camp in 70mph regularly then you can get black label version. Tarra if you want insane strength but will be heavy for one person. Unna is another good one, nice space, not as strong as a Nallo or Soulo but hardly weak, but it does like a vestibule (many unclip one corner). Terra Nova Quasar is another very strong tent, 7 crossing points in its geodesic shape so can cope with snow loading unbelievably well. But it is an inner pitch first which in rain isn't ideal. Slingfin make some good 4 season tents, the crossbow for example, contrary to common belief it isn't necessarily an inner pitch first but it is a bit of a hassle to set up the fly and then put the inner inside. But they use internal guylines as well so are stronger than the shape would suggest resulting in a spacious, relatively low weight tent. I personally have the Nordisk Seiland, more or less a Nallo GT. Slightly bigger and with better ventilation but slightly thinner fly fabric. I've had it in pretty high winds, but have seen a wind tunnel test up to 80mph with single poles. Have also used with friends a couple times and works well, lots of space in the vestibule. Tarptent Scarp is another UK classic, very strong for its weight, sorts out the space issues facing the Hilleberg Akto, just slightly bigger but makes a big difference in long nights, and the crossing poles allow it to cope with high snow loading. Also the Arcdome, very similar to the Unna, but has a vestibule, cheaper as well and comes with a 2p version. We'll see over the coming years, but looking at the design it might actually be slightly stronger than an Unna. Nortent does have strong tents, but they are a bit heavy on the marketing. The Vern is a bit well known for having some strength issues when it first came out, though looking at the Varde I can't see those in the same way (but the double door does mean that regardless of which way the wind is blowing one of the storm flaps will be in the wrong orientation). Almost anything by Samaya, but they make Hilleberg look cheap so there is that. They specialise in breathable single wall tents, and are the only manufacturer that is generally agreed to have manufacturing quality above Hilleberg. And lastly, possibly good fit, possibly not, the MLD Trailstar. When lots of people say four season here they just mean they want it strong for wind, in which case this is a large, very lightweight tent capable of performing in over 60mph. But it's design doesn't lend well to snow loading so if you will be doing lots of winter camps where it may snow heavily overnight it won't be a good option. But if all you care about is wind performance then you won't find anything as good for nearly the same weight. Tom Heaney on YouTube has some fantastic reviews of tents, buys all his tents or borrows from friends, no sponsorships. He's also the only YouTuber I have seen that holds the wind speed measure in the right place instead of walking off a few paces towards the ridge which results in higher wind speeds than what the tent faces. He has a wonderful video "the best two-person four season tent" comparing the Tarra, Quasar and Staika. And he personally loves Samaya. Really, there's lots of tents so I'd recommend choosing a type of tent, tunnel, geodesic, dome based on what you most value, be it strength, space, strength per weight. Then after choosing what type, choose the exact tent.

Sounds like a dome is perfect for you. Domes are not necessarily the best in high winds, but you do not have to take care as much about how to pitch it perfectly - unlike tunnel tents or similar constructions. If weight is not your highest priority I think a dome tent is the mostconvenient for Scotland/Scandinavia, especially in exposed locations like mountains and coastal regions. I use Hilleberg Soulo/Allak and Fjällräven. A lot of lightweight tents use a pyramid construction but they can be a bit annoying to set up - in my opinion. People swear by it but I am not convinced for my use cases (northern Europe with chance for torrential rain and wind over days).

I've had nice nights in Norway, Sweden and the northernmost part of Finland in Hilleberg tents (Soulo, Akto and Nammatji GT) and a Fjällräven tent (discontinued Skule R / S 2). It makes sense those tents were developed by people who hike in these very areas. I don't have any doubt thre are many tents that do the job well at half the price or less, but when a storm strikes, you'll feel safe in a quality tent.

I prioritize things pretty much like this: 1) safety (strong structure/suitable for the terrain and climate), 2) comfort, 3) weight. As an example, I somewhat regret selling the Soulo and choosing the Akto instead. There's nothing wrong with the Akto, but the Soulo was just simply such a safe-feeling bastion that I had a great time with it.