1st Place: TomTom GO 950 LIVE
There are many reasons why "TomTom" has become nigh-on synonymous with "sat-nav" in general speech and the GO 950 LIVE is the summation of all of those. The hardware is well designed and attractively priced and runs software which remains at the top of its game. Menus are well laid out, navigation cues are simply but effectively displayed and features such as (so-called) safety camera location display and local Google searches will prove useful.
The addition of the LIVE service is icing on an already tasty cake. The subscription fee isn't easy to justify if you're an infrequent traveller, but if you do spend a lot of time in the car it should pay for itself in saved fuel and, perhaps more importantly, patience, as you'll be travelling on more efficient routes and avoiding traffic jams.
If you're in the market for a premium sat-nav, this really should be at the top of your list.
2nd Place: ALK CoPilot Live 8
If you have a smartphone with a decent size screen, built-in GPS and a mobile data connection it's not unreasonable to think that running navigation software might be a better, and certainly cheaper, option than buying a dedicated sat-nav. CoPilot Live 8 is undoubtedly the best of the bunch available on Windows Mobile (although there's are iPhone and Android versions too, mind). Its winning formula of a great user interface, well designed maps and the most comprehensive set of interactive options available make this the one smartphone sat-nav app to rule them all.
3rd Place: Mio Navman M400
Contrary to popular belief, budget doesn't have to mean under-featured or rubbish. Take the Mio Navman M400, for instance, with its £100 price tag. It has a better user interface than similarly priced rivals, a generous 4.3in, widescreen, display and comes with Western Europe maps as standard.
The inclusion of safety camera information, free for twelve months, might come as a surprise given the price and at just under £73, the Total Refresh Pack, which offers both map and camera location updates for 24 months shouldn't break the bank.
If you're after a functional, budget sat-nav for European travel, or even just everyday use, the M400 is an absolute bargain.