I like the Quantum Fireball Plus LM for it's excellent seek times.
Apperntly it's fairly loud though.
I personally love the IBM 75GXP, and it's what I use, though with this Win9x issue that might not be a great choice....it seems that this issue doens't happen in Windows NT, so when Whistler comes out this guy should be back at the top of the list.
Personally I also very much like Western Digital, though they have a bad rep lately.
I'm going to say overall the IBM 75GXP is the best, but the Maxtor DMax+45 is a good choice to if you use Win9x.