
The North Face
Wawona 6
Spacious vestibule, strong in storms, but rainfly tricky solo.
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I have the Nammatj 3T. It’s great
My 3 person Hilleberg Nammatj is still roomy with two people and gear. But then again I don't drag my entire living room out with me to go "camping" and am of the belief that you can enjoy the outdoors without dragging a circus tent out there.
For one person, I think the Hilleberg Akto is the best tent ever made. I would say the Soulo, but I think the Akto is 90% as good but 30% lighter. Just my own opinion, of course, they are all excellent tents. I also have a Nammatj which I love for 2 persons.
What you've described is a Hilleberg. I don't think any other tent beats a Hilleberg in terms of strength to weight. I went with the Nammatj over the Nallo, mainly because I prefer the ventilation on the Nammatj and I prefer the door placement, but it is heavier than the Nallo. You won't be disappointed with the Nallo, or any Hilleberg for that matter, they are awesome.
Multiple tents is the only sensible option but honestly if it had to be one tent I think the Hilleberg Nammatj is up there. It has really big vents both front and back and full mesh convertible door. You could probably makeshift something to lift the outer fly off of the ground for the hottest months.
Hilleberg Nammatj and Hilleberg Akto. I use these all year round to be honest, but I'm thinking about getting a Durston X-mid 2
I have a Hilleberg Nammatj and a Storm Star. I would 100% save the extra and get a Hilleberg, I know they are a lot of money but I've not owned another tent that matches Hilleberg in quality and easy of use. The Nallo is a fine tent too, and lighter, but the Nammatj has better ventilation and slightly more room.
I really like the look of the Vern, I think it's one of the best looking tents. The Storm Star is a great tent, but I don't know, it doesn't really excite me. Super taught which means it's very quiet in the wind, though. The only thing I would consider with the Storm Star is that it uses the thinner DAC poles meant for weight saving, which I don't think are appropriate for a 4-season tent, and there has been a number of people with broken Storm Star poles, and it is very difficult to get a new set of poles for the Storm Star. I believe there is someone making sets and selling them on eBay for the SS, but I don't know what the quality is like, I don't think they are DAC poles.
Hilleberg Soulo, Namatj, Storm Star or Vern - but I would trust the latter less due to most reviews I've seen being from fairweather campers and the quality of materials/construction. I've had the Hillebergs out in Iceland and North America. The Storm Star is also known as a tank. I'm also not sure on the snow loading of the Nortent.
It'll probably hold up just fine in typical 3 season weather. But looking at the fading dye, it's seen a lot of use. Even with good care, it's a sign that the nylon may not be as strong as it once was, so I personally wouldn't trust it in harder winds. Especially when weather can be variable in the wild. Personally, if I was looking to get a nammatj, it's for its 4 season capacity, and knowing that i can trust it to stand up to unexpected changes in weather. Indeed, that's exactly what happened a few weeks ago. Set up with expected mild weather, ended up with 50mph gusts all night. Noisy, but felt safe throughout. This is especially in light of reasonably capable tents within that 600euro price range.
Hilleberg. A totally bombproof alpine tent. Bought it when it was sub $700 many years ago.

The North Face
Wawona 6
Spacious vestibule, strong in storms, but rainfly tricky solo.

Gazelle Tents
T4 Hub Tent Series
Fastest setup, durable, but bulky and awkward door.

Durston
X-Mid 2
Ultralight, spacious 2P, but not for very strong winds.

Durston
X-Mid 1
Budget ultralight 1P, spacious, but large footprint.

Naturehike
Mongar 2 Backpack Tent (Nylon)
Budget 2P, spacious for price, but not for 4 seasons.

Ranked #1
Durston - X-Mid 2

Ranked #1
Gazelle Tents - T4 Hub Tent Series

Ranked #1
Gazelle Tents - T4 Hub Tent Series

Ranked #1
Durston - X-Mid 2

Ranked #1
The North Face - Wawona 6

Ranked #1
SlingFin - Portal 2