It is a very vague question so I'll offer the equally vague cliche "nobody ever got fired for buying IBM".
What do you want the laptop to do? Is portability and a long battery life of prime importance or do you want a desktop replacement? Is price the main factor for you or is the budget relatively unimportant?
I've currently got an old Compaq laptop that I quite like but I don't know enough about more modern laptops other than I've not been overkeen on the new Dells I've used - good prices and specifications but I don't get on with the keyboards or touchpads at all although the build quality is quite good.