Well, it certainly won't hurt to give the AS product a try. You can still accumulate World Perks flying on the Eskimo. I'd make a pitch for the AS flight. In general, I find the cabins on AS to be a bit brighter than on NW, and there's not that overwhelming dark tube feeling I get sitting on the 753. After seeing the snack packs and other items for sale on NW, I'd fork out $5 for one of those nasty but oh-so-irresistable Angus Burgers that AS hocks on its flights. The final tally for AS is the crews. I've found them to be best in the US. NW out of Seattle tends to skew cranky in my experience, but I'm told the demographic of the FA base here is changing.

That's just my $0.02.