Smite, by the definitions of the dictionary would be melee, but not for most PvP purposes, as it is unblockable and requires no attack roll (2 qualities that make it similar to spells).

They hate FoH and Smite because they don't bother to find a way to counter them, they'd rather bitch and not duel you. I tell them too bad, unless it's a 'Melee Duel' game, in which I will only duel people who want to.