Seagates have a five-year warranty in the U.S. That is two years longer than most of the others that I have evaluated. That might be a consideration when comparing the $1 difference in price between Seagate and WD.
Also, the WDs I have, while mostly good, are audibly louder than the whisper-quiet Seagates. I have two WDs that actually whine. I was told that Seagates use fluid-dynamic drives instead of ball-bearing drives, so I am guessing that is where the whines come from.
Seagates are now using a perpendicular recording technology. The two I have of that new series in my personal machines (an 80GB PATA in one and an 80GB SATA in the other) have run flawlessly for the past few weeks, but they are only about a month old as of this writing. I have heard good things about this new technology, but I do not have much personal data to support how much better a new 10 series Seagate is in comparison to the previous 9 series.
I have never dealt with a Fujitsu drive as yet. On a side note, have a Maxtor 1.8 GB unit bought new in 1996 that is still running. I have a Samsung 80GB unit that is barely three years old that started giving SMART errors. I have a WD 20GB drive that started intermittent clicking after six years.
You might wish to comparison shop and read reviews of people who have purchased that exact same model drive. I like to read the reviews at Newegg. Sometimes I purchase there, sometimes I purchase from ZipZoomFly. Whatever your drive need, someone else has already been down that path, written a review, and can help you in your purchasing decision. Good luck and have fun shopping.