Oyster, has a nice wide seat and you can buy loads of different colour packs for it, also one of the smallest folding systems
. I candy is nice but seats can be narrow. My favourite is the new egg but very expensive at £700.
I'd go to mothercare/ pram shops/ toys r us etc to have a go at pushing different Prams around , get an assistant to show you how each one folds etc and wrote down all the names and prices of the ones you love . Some even come in limited edition colours too ! Silver cross pioneer is lovely in tweed
.
I would then go home and look on amazon/eBay / internet for cheaper deals . Toys r us often throw in free car seats and bases
Some Prams feel cheap and nasty when you push them and can be very fiddly, others are lovely and smoother and hold their value.
Also consider 3 things
1- any future children ? Some Prams can be adapted to carry two seats or a carrycot and seat
2- how much do you REALLY want to spend for a pram
3- is the pram going to suit your needs ? Folding size / free cosytoes for winter ?