A lot of great lists here already… I hope you like oak! Kongsgaard and Aubert to me rise above all others (in the style), the others are in no particular order.
Kongsgaard
Aubert
HdV
Ramey
Kistler
Peter Michael
Chateau Montelena (hard not to put them on the list for historical purposes at least)
El Molino
Walter Scott
Ridge (I prefer their non Chardonnays, been enjoying the Grenache Blanc recently)
DuMol
Littorai