Pioneer Lite 2

Terra Nova Pioneer Lite 2. Around the same weight as your current Vango. 3/4 season (I’ve had it on some windy summits and it was great) it’s not cheap but a lot cheaper than a Hilleberg for example. The inner can be retracted easily to maximise your vestibule space which wasn’t a big seller for me when purchasing it, but in practice it’s been a great feature.

All mine tout themselves as 2p (except the Pioneer Lite 2, which I think claims 1.5p, whatever that means). I'm only 5'7" but am generally a bit disorganised and seem to be able to clutter up the place rather easily. I tend to like to keep as much properly 'inside' as I can, which is why I tend to lean towards more space. I have noticed that there's often not a lot of difference in weight between 1p and 2p versions of the same thing. The only sub-2kg ones I have are a Zephyros Compact 2 and a Lanshan 2. The Lanshan is significantly bigger inside, though of course they are very different styles of tent, with the Zephyros being lower profile and better in windy conditions at the expense of internal space, being a bit heavier and not needing walking poles, which I always take anyway.

Durston X-Mid 2 ticks most boxes, dual vestibules, fly to ground, strong in wind/rain, light. Tarptent Stratospire 2 is weather proof with real vestibules but heavier. Terra Nova Pioneer 2 is solid and lighter than your current tent. Naturehike or 3F are okay if you accept durability tradeoffs. For wet and wind, structure beats ultralight every time.