Err... Annie higher combined pick/ban rate and higher win rate mid lane at plat+ elo ranked. Just saying. Also much easier to play.
Anyways, I was someone who didn't like the Ahri changes (although I don't believe I said she would be trash tier, just that she'd be better without any changes and didn't need DFG compensation), and while I still play Ahri and still find success with her, I'd still rather have her as she was before.
The main reason being that I still think that players have been too clueless to learn how to play against an Ahri. I mean, she's a kite mage. That shouldn't work. Why are you chasing an incredibly mobile, high damage, ranged champion through the jungle for a kill? Ignore her and go after that objective. She's great at getting away, make her come to you, then destroy her because she's squishy, has easily dodged CC, and can't 100-0 your squishy unless she's fed (and any mid-lane champion is OP when fed).
She works because the average player gets caught up trying to chase her to secure a kill and cares more about kills than objectives. Her poke pushes the lane but she can't insta-clear unless she gets an early lead. She goes OOM easily in lane if you use more than 1 Q per wave (before morellonomicon), which isn't enough to successfully out-poke most opponents before going for a kill. She can't roam early because of the prior comments. She has limited tower pressure. She brings lots of utility and AOE damage to fights and has a lot of clear strengths as well. Seriously though, ward those bushes so you don't check a charm to the face, watch her mana in lane (because you'll dominate when she's low), and don't stand all on the same spot or in a line so her AOE true damage doesn't wreck your entire team (which at least isn't a Malphite ult or something) and most importantly don't chase her after a successful fight when there are objectives waiting to be taken, and you'll be fine against her.
At least pre changes, she could reliably flash+charm or R+E in to her combo to 100-0 an adc/apc regardless of how the enemy knew how to play. Post-changes, Ahri can be negated to an early 0/0/0 where she can't help her team much at all unless they're already winning.