Guys you are brilliant thank you! Reading the latest answers it seems MB is the way to go (damn dh and his know it all friend!)... though Snuffler managed to ruin it all at the end .
Lubyluby, good to know that your child liked to look out at 6 months, because that was my big worry about the MB.
Leifmum, thank you, have looked at Quinny's website as my friend has got it for her baby (due any day now), looks really nice. Have heard that is perhaps a bit too lightweight though. What do you think? The flat folding part sounds good, as that is what's sounded good from this discussion with the MB nd bad with the BB. Will definitely be checking whether my friend gets on with it.
Carpetbeetle, thanks for clear clarification of names! You're right, carrycot is facing the driver, it was more the buggy part I was thinking of when the baby is sitting up but is still perhaps a bit too young to be facing out all the time.
And then Pooka making a convincing case for the BB! Good to know your 4 year old can just about sit in it still. The board sounds a v good idea, think you can have that on the MB too.
Aberdeen, really like the idea of the MB being able to fold all in one piece and being so light. Have a lot of steps up to the lift from the street in my block so that's an important factor. If the baby is anything like its father was it will be quite long and therefore grow out of the carrycot pretty quickly. Was your five month old happy in the buggy that early? Saw on the website you can get an insert to make it feel cosier and smaller at the beginning, don't know if anyone has used one.
Misdee, yes moved to Sweden a couple of years ago, first time I knew friends with babies and therefore came across the different brands, it's called Urban Jungle out here. Thanks for saying about the hood folding back so well and your daughter being as chatty!
Helen, interesting you like both but MB wins. Solidity thing with Chameleon concerns me a bit since dh's friend said she felt that the BB didn't feel strong/solid enough compared to the MB. Not sure you can get Frog anymore or am I wrong? Website only seems to say chameleon or bee. To hark (or is it harp ?) on a little more about size, you say the seat's big - that's obviously great in that it lasts for years but is it snug enough for a 6 month old (lots of people on here are using it that age so I assume so, just wondered when you said huge).
Anyway, thanks so much again everyone, really appreciate all your advice. Feeling very informed now and slightly leaning towards the MB now... (helped by the fact that I spied the golden sleeping bag type thing on the website! Not sure right for a little boy though )