I have 2 WD800JB (80GB 7200RPM special edition 8MB cache ata100), 1 older WD 20GB 7200RPM ATA100, 1 WD 30GB 7200RPM ATA100, and 1 WD 40GB 5400RPM ATA100, all in different computers. As you can see, I favor WD as none have ever died in my 5~ years of using them (i still have acouple of my original WD drives like 6GB ones that work fine). Its funny about seagate that I wanted to swap the 20GB in one of my boxes for an 80GB, so I bought a Seagate Barracuda 7200.7 80GB at Best Buy, and I went back 3 TIMES to exhange then finally return - I could not get the drives to work for nothing! So I went over to OfficeMax and bought my second WD80GB! As for Maxtor, the only Maxtor I have owned was an 8GB about 2-3 years ago, and that died (just wouldnt spin up one day). BTW, all of these drives were run 24/7, and the 20GB which is oldest has been going for about 4 years!
EDIT: just wanted to tell where the drives were bought (to avoid bad batches or whatever): 20GB - came in a gateway computer 4 years ago, 30GB bought at CompUSA two years ago, 40GB bought at best buy 1.5 years ago, one 80GB (the oldest one) bought from NewEgg in May 2003, and second 80GB bought last weekend (sep 14 2003). Oh and that dead 8GB maxtor was bought at CompUSA but i cant remember when lol.