The Acer Aspire One is better than most netbooks. It's fantastic for anyone who wants a small, cheap machine on which to type and surf the Web. However, its battery life lets it down slightly.
With a mass of storage and a large breadth of features, the M70SA from ASUS is a solid performer and a decent media centre/desktop replacement to boot.
The Eee PC 1000 is a fabulous machine. It precariously straddles the line between netbook and ultraportable, but it's well equipped, well designed and great for those who need a laptop on the move.