Starting my cross-country adventure in mid-June, mainly on the Northern Tier, but starting in Oregon on Lewis & Clark first and then connecting up in Glacier. I've done a bunch of searches here, as well as looked at the Portland bike maps available from Oregon Dept. of State, and I'm being tempted to skip ACA's recommended Route 30 to Portland and go with Route 202 down into Veronia and Banks. Yes, I know the latter has way less facilities, but, from anyone who knows both, is it better biking? It sounds more rural, with way less traffic (although missing Rte 30's ginormous shoulders).
Also, can anyone share their preferences for starting in Seaside (other than ability to do the Pacific wheel dip) vs. Astoria, or vice versa?