Not that it is really important, but NCL ships seem to use tenders in many of the Alaska ports, whereas Princess ties right up to the dock.
Carnival Spirit 2003 (Caribbean)
Carnival Fascination 2004 (Caribbean)
HAL Noordam 2004 (Norway)
Celebrity Horizon 2005 (Caribbean)
Sun Princess 2006 (Caribbean)
Diamond Princess 2007 (Alaska)
Carnival Splendor 2008 (Mediterranean)