The fact that Vayne isn't even being considered for nerfs when her stats are so absurd is sad really
She's picked in almost 35-40% of all games in Diamond win around a 52% win rate. She's also banned more and more now because high elo players are realizing exactly how disgusting she is currently.
"She only stomps low elo"
Except her win rate increases from 50% in bronze to 51/52% in Diamond http://www.lolking.net/champions/vayne®ion=all&map=sr&queue=1x1&league=diamond#statistics
"She is very hard to play" Except people who have 1 Vayne game played nearly win half their games. An actual hard champ to play is someone like Azir who goes from 40% to 55% http://champion.gg/champion/vayne
"She's only good in solo queue" Except she's been picked FIFTY times in competitive matches JUST in August of 2015, which, mind you, is only halfway over. http://lol.esportspedia.com/wiki/Vayne/Match_History
"Vayne has low range" She has average range, 550.
"When I say Vayne's range is low I mean her skills, she has no skills to extend while champions like Lucian/Sivir do" Except Champions like Sivir and Lucian are worse in duels and less mobile than Vayne is, not to mention they have 50 less AA range. If they didn't have some aoe damage/poke then Vayne would be better than them in every category
"Vayne has a weak early game" She wins over half her games from 0-25 minutes http://champion.gg/champion/vayne
These excuses don't hold water anymore. She's a priority pick in every region now, she's very popular in solo queue in all elo ranges, and she has no weakness currently. Her early game weakness has NEVER been true, she always has had an absurd safety net in lane due to a dash + knockback, and she can bully most melee champions in lane.
Something has to be done about her, she shouldn't be able to beat melee champions 1v1 and in teamfights while also not losing to ranged champions. There is no way to counterplay Vayne as a melee champion, and it's been this way since bork was added to the game. You can't 1v1 her, you can't outplay her CC or damage, and you're basically useless vs her

Curve dips below the x-axis as it continues to the right.

; Ashe has vayne at 47.79% win rate her lowest matched up.
does pretty well against her. So long as she isn't drastically behind Vayne, she can duel her relatively well at all points of the game, so long as you hit the blind.
had stats like these, they would have been nerfed very quickly to put them into line. Not coincidentally, all 5 of them have already.