What a can of worms that debate is ... Phil and Ted have the very hip marketing web-site but Mountain buggy seems to stand for more things Kiwi ...They both do the job very well.
I think the trouble starts when you begin a conversation there is always an evangelist standing nearby ready to tell you why what they have is better than the alternative.
The trouble with these evangelists is that they can be singleminded. The best ones are the ones who have looked at the options and believe from experience.
Who do we believe???
Mountain Buggy.
But I'm biased too of course. I would email Angela Sutherland (I will email you her email) as she ran a walking group for Mums in Rotorua for probably six years. Once each week they would meet in a designated car park and take their babies on a very challenging bush and all terrain walk of some sort. Then they would go for coffee together of course... So she has seen all the buggies come and go (and in some cases disingtegrate) and there would probably be no better source of anecdotal evidence...
I just must add: choosing the stuff, how exciting and congratulations to you both!