USB Flash Drive - FAT, FAT16, FAT32 of NTFS

I must admit I have never ever given a second thought about what format I used on my USB flash drive, that is until I spotted the following article at IronGeek website entitled: File Systems and thumb drives: Choosing between FAT16, FAT32 and NTFS to get a faster USB Flash Drive . Fascinating stuff (really!) and just something I had never thought to try out.