We've found it's a bit like bikes, the do-it-all ones don't really do any one thing particularly well.
A big silver cross one would be ace, cause you will use it loads! We got a big pram with a great bassinet/cot thing and it was amazing. As right place right time says, you do use them a lot.
For travels, get a good foldable that you can pug a car seat into, then move to a mclaren when a bit bigger.
As said above, you will have three, it's the law.
Can I also recommend a good bike trailer? We have a bog old Croozer 535 and both current kids, and imminently arriving number 3, spent/will spend a heck of a lot of time in it, and good ones are massively flexible. (e.g. attach to bike, wee castor wheel for shopping trips, big jogger wheel for bigger shoves, inc AMAZING on beaches.)