What other ADCs do you think could function well mid-lane?
Ezreal, Kog'Maw, and Varus have demonstrated that mid-lane can still be a good spot for certain ADCs. But beyond those first three I mentioned, who else do you think could make for a good mid-laner?
I'm thinking possibly...
: Hybrid builds can make her ultimate REALLY hurt if her team sets her up. Since she seems outclassed by other ADCs due to her wonky physical/magical damage split, building her as an AOE nuker could be better for her. (She's expecting an update, though, so this might not last long.)
AD caster builds and hybrid builds aren't out of the question on him. He's safe enough to avoid ganks easily, and can easily mix up builds from game to game to keep the enemy guessing. Plus he doesn't scale as hard into late-game as someone like Tristana or Ashe.
: Have you ever tried a CDR Sivir build? It's a lot of fun being able to use your ultimate every 48 seconds, giving your team some extremely helpful utility for split-pushing or objective control. That and Sivir's synergy with attack speed and crit are pretty lousy due to her bad attack range (at least compared to someone like Jinx).
But that's just my thoughts. What are yours?

(try it on aram, peeps, it's fun. Less effective now because
She's half an assassin anyway, and the mid lane would give her more opportunities to use her ultimate to roam.
Very much depends on who she's against, but she's extremely hard to gank in mid lane by most melee junglers because of her E (assuming the enemy laner can't lock her down.)
Similar to Quinn, mid lane lets him roam and gank.
Has a lot of mobility to avoid spells, and good burst to use against fragile mages.
His short range means he'd only be good against certain enemies, though.