Which one of these three vacuum cleaner is the best?

I want power and ability to pickup human and pet hair, which one of these would you recommend?

Shark Navigator NV22L
Bissel Pet Hair Eraser
Hoover WindTunnel Pet Rewind

http://www.amazon.com/Navigator-Upright-Bagless-Cleaner-NV22L/dp/B002IPHBNE/ref=cm_cr_pr_product_top

http://www.amazon.com/Bissell-Eraser-Dual-Cyclonic-Upright-3920/dp/B000VDQ38E/ref=sr_1_2?ie=UTF8&qid=1290031527&sr=8-2

http://www.amazon.com/Hoover-UH70210-WindTunnel-Bagless-Upright/dp/B002RR9Y92/ref=sr_1_3?s=home-garden&ie=UTF8&qid=1290032300&sr=1-3