I had a couple of the corsair voyager original USB sticks and while the rubberized body was durable, it seems that the USB plug itself would actually break off...since there was no metal or hard plastic within the casing itself to hold it securely. Corsair replaced it for me a couple of times without trouble, but I was unable to access any data on the stick when I sent it in....thus if I didn't have a backup of my thumb drive, I lost the data.
The other issue I had with the Corsair Voyager was that the small hole in the case to attach to your keychain would eventually rip. And for me, if the USB key is not attached to my keychain, it's simply going to become lost.
I've been carrying the Sandisk Cruzer (Newegg.com - SanDisk Cruzer 16GB USB 2.0 Flash Drive Model SDCZ36-016G-B35
) for the past few years daily on my keychain and haven't had any problems with it. I've got 2 of them personally that I own (a 4gb and a 16gb), and I have 3 of them that I use at work (all 4GB's). This device has a small metal bar that you can attach a ring to...and has proven extremely sturdy. I keep my USB key and my work security door opening fob on a carabiner clip (What is a carabiner clip? get one Personalized!
), which then attaches to my keys. I keep it with me at all times, so the design of this FOB has been very durable for me.