Don't know about USB sticks, but my WD "My Passport" is merrily copying away on the rear USB3 port with no problems. If you have a front port on your case then it need to be a USB3 port, (1 and 2 have a different pinout), to work and need to be connected to the correct headers on the MB.
Did you set up your BIOS properly?
Did you enable XHCI and EHCI hand-off?
Of course, when you do get USB3.0 working you'll still find that USB2.0 storage devices only work on those ports if connected via an external USB3.0 hub. This is a known issue with all Z77/H77 USB3 ports (some motherboards [not yours] have onboard hubs which hide the issue).
There is a way to fix it by multi-plexing the USB2 and USB3 ports together in your DSDT. I have this working on my ASUS Maximus V Gene and USB2 media devices now work fine from all my USB ports, USB3 ports included.
The ones I have were eBay specials, so you should be fine with pretty much anything.Alright then, can you recommend me any USB 3.0 hub, which should work? Or any cheap chinese hub should work?