Anivia you are right about, the rest no so much.
Vik's speed boost is worthless compared to the mobility some tanks have, which is why I was looking more at his ult as his main, reliable kiting tool.
Brand has one rotation of abilities and then he gets caught, not to mention the how prevalent spell shields are, and that his stun is a slower skillshot. No way in hell he kites a tank with any mobility or cc.
Swain can kite, once he get's Rylais, but only to a degree, and of course he usually builds tankier rather than full ap.
Vel's q is a easily dodged skill shot, as is his knockback and his true damage is flat meaning it doesn't do much to counter high health tanks unless he procs it a shit ton with his ult(which means he's rooted, catchable, and likely dead if he doesn't get the kill)
I'm sorry, but holding up immobile champs and pointing out that they do in fact have a few forms of cc, doesn't mean they automatically become some kiting gods.
Things like Mao's huge snare, and his point and click dash, Zac's long range knockup, and Sej's dash, and multiple stuns kinda make those item dependent skill shot slows look weak and unreliable. You may get zoned off by any one of these champs, but in doing so they present a pretty generous window to engage as all of their self peel is on cd or they lack much if any reliable self peel to begin with.