London is one of the premier tourist cities in the world and every year millions of people pass through the British capital for business, or for pleasure. As you'd expect from a city like London, there are so many great hotels spread across the capital, that the problem isn't so much finding good accommodation, it's finding it in the right place.
If you've got kids with you, a great place to base yourself is Kensington in the south-east corner of central London. First of all, there are loads of fantastic Kensington hotels that offer great value through the likes of Millennium Hotels (take a look for yourself), so you'll be spoiled for choice, and as certain parts of Kensington are very nice indeed, you could land yourself in the lap of luxury.
Another great thing about Kensington is the museums, the Science Museum (definitely the best place to visit with children) and the Natural History Museum are right next to South Kensington Tube station, so you'll always have something to do right on your doorstep.
Additionally, a fair chunk of London's major tourist destinations are to be found on the Piccadilly Line, which runs straight through South Kensington. The British Museum is further up the line at Holborn, whilst the same line runs through Covent Garden and Piccadilly Circus, giving you easy access to some of the highlights of London's nightlife.
Alternatively, just along the District Line is Victoria train station, so if you've flown in from Gatwick, it's easy to get to, and of course the Piccadilly line goes all the way to Heathrow, so if you passed through London's biggest airport, that's easy (and most importantly, very cheap).
Then, of course, there's the fact that no more than ten minutes up the road you've got the southern corner of Hyde Park – which is fantastic whatever time of year you visit (providing it's not raining, in which case it's not all that great), and just another five minutes along the road is the famous Kensington Palace Gardens. Or, if you just fancy having a nose round Kensington itself there are loads of lovely little boutique shops which you're unlikely to find anywhere else.
London is a great city, but if there's one problem, it's that it's so big and there's so much to see, that you can find you spend a lot of time sitting on the London Underground, so it's important to be based in the right place, and there's no better place than Kensington.