I have a Bugaboo Bee and a Cameleon.
Bee is good for an older toddlers- easy for them to climb in and out themselves. I'm surprised that pp said one year old grew out of it as my over the 100th centile (for height and weight) boy could fit into it til he turned 3. So it did him til 110cm. This is because the back rest extends upwards. He was too heavy for it but it held up.
Cameleon didn't fare so well when he was too big. His head came past the canopy and something snapped inside when I tilted it back to go over curb so it couldn't be folded.
But until their feet can reach the footrest I don't think Bee is very comfy (except when they are small lying flat baby). That's why I got a Cameleon. Plus there is no bar in Bee for them to put hands on so he would hold the sides and fingers would get bumped.
Bee carrycot isn't as good but I think they actually prefer the slight head elevation they get in regular Bee seat with the baby cocoon which is cozy for them.
You can put car seat on top of regular Bee seat if you are lazy.
Bee is better on holiday. Easier as it folds as one piece and the seat meant that my 3mo old could go in it as well as my jet lagged 3yo.
I love all the accessories you can get for Bugaboos.
I like how Stokke is higher but how does older children get themselves in and out? I'm thinking of situation when you have a tired 2 yo and your pregnant with number two and don't want to lift toddler up.
My friend got a Babyzen yoyo after her Cosatto developed dangerous fault and she loved it and used it as everyday buggy.
I wish they'd been around when I had DS as he's flown 30 times but I guess he might have been too big for it. I still kind of want one...