The US magazine Good Houskeeping has published a test of handheld vacuums. I cannot link to it, but below you can see a scan, where they publish the best vacuum cleaner.
The test winner was Electrolux Ergorapdio
Second place was awarded to Hoover Linx
Lower rated in third place was the most expensive Dyson DC 59
Enjoy your hand held vacuum!
EDIT: I now find that the same vaccum becomes a testwinner in Germany. There it is sold under the AEG brand. You can read the entire test here. In German, - let Google Translate do its magic :-)
Ergorapid comes out on top, followed by Philips, and even further back Dysons latest model DC62.