I've stayed at the Pan Pacific before. Loved the location and we had a wonderful corner room. This was when we were on Princess and had booked a precruise through them. And the convenience couldn't be beat in terms of walking down without our luggage and walking aboard the ship.
Maybe we'll get lucky and the Mariner will dock at Canada Place in 2006??
Also, there's a Fairmont right across the street from Canada Place as well which is supposedly very nice as well. I've been very fond of Fairmonts since our visit to the Fairmont Orchid on the island of Hawaii, as well as staying at the Chateau Whistler and the Fairmont Vancouver Airport (easily one of the best airport hotels I've ever stayed at).
Masaki
Masaki