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

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I have a sundome. If there is torrential rain eventually the walls will soak through. We never had a leak through the rainfly, though.
I had have 4 and 6 person sun dome. Great tents for gmt l the money. Never had an issue with either after many seasons and more than a few rain storms.
INFO: are you driving in or hiking in? You mentioned a cot, so I'm assuming drive-in, but it's good to make sure. The Coleman Sundome is super easy, even the 6 person. And I love my LostHorizon self inflating mattress.
I’ve had mine for two years and no issues yet. We camped through some big storms this summer and stayed dry. Like anything else I’ll prob redo the waterproofing every few years to keep it in good shape. I always keep an extra can of the spray in my gear.
I own a 6-person tent for me and one kid. That fits two air mattresses and gives us space to stand, change clothes, keep our bags, etc. I have a Coleman and it works just fine.
I use a Coleman 6p Sundome and put down a tarp. Fits 2 cots with room to spare.
I've got the sundome 6 person, had it for years. Never had any issues with it, always stayed dry. It's super easy to put up, and the poles are thicker and good quality. Of course, get different stakes, but that's true for all tents.

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
Durston - X-Mid 2

Ranked #1
SlingFin - Portal 2