In your opinion, you mean. Both Portland and Seattle are growing and wealthy markets with deep corporate support, potential owners with very deep pockets, suitable arenas either in place or slated to begin construction, and a long history of junior hockey support. While I do think that there could be issues with Portland becoming the smallest market with both NBA and NHL teams and Seattle almost assuredly becoming a four sport market again as the NBA is sure to move back eventually, it's definitely not a sure thing that either would fail. And they arguably have as much going for them as any potential market, aside from the infallible mystique that untapped (or undertapped) Canadian markets are assumed to have as a sort of a priori truth these days.
it's definitely not a sure thing that both would succeed either. indeed, it's not even a realistic hope that they could reach the middle. that's my point. one or the other, not both and certainly not right now.
the market arguments you provide to support the viability of each city equally apply to a bunch of other places too, especially to GTA2/SO and QC. tommy's argument was that franchises in both portland and seattle would "grow the game" more than having one in these other cites. i disagree.
seattle is likely the best US-based city for a team, but it's net financial contribution to the league, both in terms of gate (obviously) and in terms of viewership, advertising, and network contracts, pale in comparison to the net contribution of a team in hamilton, toronto or quebec city.
were there no distinction between canadian and american TV contracts, none of us would be having this discussion. these 3 canadian cities would obviously deliver a LOT more into the pockets of the league owners than ANY american city. let's be clear, a viewer who watches two games is the same as two viewers who watch one game each when it comes to advertising dollars. coke and ford would not be get a bulk discount advertising rate from nbc or cbc when they buy time on two SO games. and nbc and cbc will pay the league based on total expected viewership. of course its beneficial to have PNW-based local content, but the interest is simply not there yet to think a portland game would get anything close to the ratings of a hamilton game. so, this myth that the nbc contract is THAT much more valuable with an abundance of weak, watered-down markets is just plain wrong. portland provides no marginal benefit above seattle. but hamilton does provide a great deal of marginal benefit above other proximate existing content ... and it also provides a great deal more gate.
and this oft-raised issue of realignment based on times zones and travel expenses is little more than the tail wagging the dog.