Lethal is only "most resisted" NPC side. It's tied for most commonly resisted on the PC side, along with smashing, although it isn't always the resist a player has the most of. (Dark Armor is best at Negative Energy, Electric Armor is best at Energy, Fiery Aura is best at Fire, etc. Even Willpower was actually better at Psi than Smash/Lethal without Tough, which is a separate discussion entirely.)
Anyway, where were we? OH, THAT'S RIGHT, FLYING THROUGH THE SKY!
/em whoooosh