I own both the Laserlarge 1 and the Voyager. I haven’t used the Voyager in anger, on a hill side in windy conditions yet, but here are my thoughts in case they’re any good to you:
The Laser needs more pegging points in order to be pitched in a stable manner, and in my experience, even when pitched as tightly as I can get it, it still flaps around remarkably in strong wind. So, as to your question as to rocky ground, if you can’t get 10 or so pegs in with the Laserlarge, you’re not going to be able to pitch it firmly.
On the plus side though, it’s a spacious tent, and because the porch opens from the side there’s plenty of room in the porch for two big packs and still room to cook (but on the down side, the zips open from the bottom only, so not ideal for cooking).
On the other hand, the Voyager needs fewer pegs to get a good pitch, and because of its design it shouldn’t be flappy. In my opinion, the standard Voyager's materials (don’t know about the Superlite) feel a whole lot more sturdy than those of the Laserlarge.
But, the porch design on the Voyager does make it more cramped to store two sacks and sets of boots and still have room for cooking.
The big drawback that’s often quoted for the Voyager is the fact that it’s inner pitch first (type ‘Voyager’ into the search function and you’ll come up with a few threads on the subject), so not ideal in the rain. I’ve not pitched it in rain yet so I can’t really comment.
Not sure if that’s any use to you, but from my own preference and experience, I would chose the Voyager over the Laser. I went for the standard Voyager over the Superlite solely because of the locations and conditions in which I want to be able to use it, it’s rated as four seasons and I already have the 3 season Laserlarge. As for the Superlite, if you do trawl through the existing threads you’ll find some good useful comments on it, which would suggest that it’s a very viable alternative to the standard model.
I've used the standard Voyager for 10 years and this year have gone for the Superlite - both are excellent. I'vr no experience of the Laserlarge as my own preference is for free-standing semi-geodesic tents.
I agree with Gayle's assessment but can add a couple of points: The Superlite materials do feel quite flimsy but seem to be pretty robust in practice. Used on an exposed, windy pitch it was as stable as the standard model. Chris Townsend reviewd the Superlite in a recent TGO (praised it btw) and said that it was 4-season in terms of stability and wind-resistance.
As to 3 season / 4 season - there are 2 reasons why the Superlite might be badged 3-season. First is it's relatively flat roof, so potentially snow may build up on it, although it's easy to dislodge (unless you've left your tent of course), but that's basically the same as for the standard model. Second, it's outer's seams aren't tape-sealed because of the proofings used (tape won't stick). You can seal them yourself if it matters to you but I don't find it causes any problem anyway.
As to inner-first pitching, I know it's a big thing for some people, but all I can say is that in 25 years of using (Terra Nova) inner-first pitching tents, I can think of 2 or 3 occasions where the inner was a little damp by the time the tent was up and that includes pitching in some pretty heavy rain. If you're organised you can get the inner fully protected inside a couple of minutes.
After seeing a Nallo 2 yesterday, the decision has just got harder. It’s a bit pricey, but it has got plenty of room and seems more robust than the laserlarge and voyager superlight.
But as I'd be using it solo for 30% of the time, would people think 2.1kg is an acceptable weight to carry around on your own?
2.1kg is not too much to carry on your own - my ME Dragonfly weighs that - but it's more than you need to carry. Still, if 70% of the time you'll be using it for two people then perhaps it's worthwhile.
Fwiw (and it's not worth much, since it's just a personal opinion), I'd go for the Nallo 2 from that group, if it was my choice. I've rarely spoken to a Nallo owner who didn't love the tent, there's loads of space in it and it seems to win 2 person tent awards time after time.
I copied out and posted on here a review of the Laser Large that I had in some magazine last year, and although I've tried to find it with the Search facility I can't. I can't remember what it said about rocky ground, but it wasn't a rave review.
The Voyager is a great tent: it just depends on whether you want to have to put inner and outer up separately or not. If that doesn't bother you then it's probably the best of the three, with its semi-geodesic design and only weighing 1.7kg.
