Glo's and Lowell's are probably tied for a close second, but after this morning I'm ready to rule that of the places I've been, Skillet serves Seattle's number-one best breakfast:

skillet breakfast sammy
housemade guanciale
organic egg
toasted brioche
organic american cheese
$5.00
Perfect cure for a slightly hazy morning after the
Dow Constantine victory party.

Locations, more info, bacon jam: skilletstreetfood.com