Reward seats in CONUS are tough to get for EasyPass, but standard seats are always available on almost any route. For international I've found that coach seats are easy to come by at the lower reward levels, but first is tougher.

FWIW, I cannot recommend highly enough travel in Virgin Atlantic's Upper Class. This service absolutely spoiled me for any other airline!

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CO plat, UA prem; Marriott plat, Hyatt plat, Hilton gold, Starwood gold, Fairmont gold; Avis select, Hertz 5-star, all the others base level...