Flash Drives

Hi guys, please tell me which flash drive to choose for everyday use?

I have an important USB that has been accidentally filled to the brim, leaving it unusable. Plugging in the USB, Windows says I need to format it. Properties shows 0 B on disk, 0 B used, etc... Is there any method or software I can use to recover the contents?

Whenever I plug-in my Kingston USB flash drive it is showing an error – “USB drive not formatted”. There are some important data files & some precious pictures which I cannot afford to lose. Is there any way to repair my flash drive & recover the data if there is any data loss situation??