I'm undecided on that game. For me it would be the Spurs or nothing.
Portland is one of those teams that I don't have a good feel for yet, simply because it is too early in the season to tell whether they are going to be stronger this year or pretty much the same as last year. So since they're at home and have nothing to lose against the Spurs, I'd rather watch closely and see how they respond and then base future Portland game analysis on such performances.