Zilean - Reasonable poke, Movement buff / debuff, Short-ish Autores Annie - Good range, Shield, Stun, Pet bear which is awesome regardless
Iceraptor I think his name is, used AD Malzahar and that worked out remotely ok, I think he has done AD Ziliean as well. Janna and Sona used to be considered a reasonable as not too ludicrous for AD but I'm not sure if that has changed at all.
GW2 EU - Gandara --> Sir John Brett - Human Thief, Happy Stromgarde - Norn Warrior, Grizzly Ironstrike - Charr Ranger, Flooff - Asura Engineer
Orianna has excellent base attack speed (at level 18 she has the 7th best in the game, higher than every ranged AD carry except for Twitch), bonus autoattack damage from her passive (from a free longsword at level 1 to a free BFSword at level 16), and she's packed with utility besides.