Depends on your priorities, if it's seats I'd go for the new swiss business (a substantial part of the fleet will be refitted by next summer, but avoid any flight scheduled for the A330-200), or Air Canada. NZ is good but out of the way and requires an extra intra european hop.

For service, SQ is the obvious choice.

LH is a solid choice, not the best seat or service in the sky but consistent and surely better than US itself.