My setups
WD:
640AAKS x 1
750AAKS x 2
10EACS x 1
10EADS x 1
15EADS x 1
15EARS x 1
20EARS x 2
Elements 320GB x 1
Seagate
Momentus 320GB x 1
7200.8 300GB x 1 with a blown protector (drive still works)
7200.8 500GB x 1
Hitachi 500GB x 1. with a fiddly and borderline protector (drive still works)
RMAs for the last 5 years:
WD
640AAKS x 1 (replaced with 750AAKS)
10EACS x 1 (replaced first with refurb EACS, then with new EADS).
Seagate - 120GB IDE x 1 (failed without replacement)
Maxtor - 120GB SATA x 2 (failed without replacement)
As you can see - I still prefer WD. Haven't bought a Seagate drive in 5 years, the last was the 500GB 7200.8 in 2006.