Sir my vote for Alpine 9886, all the way, sounds very different, the display is readable even when the sunlight is direct on HU and equalizers and filters are far better and easy to use then any Pioneer 9XXX series.
Also take it in your hand and witness the weight and solid build quality.
If you can get your hands on 9887, it is even better.
No doubt Pioneer 9650 is one of the best of Pioneer along 8650, 8850, 9850BT.
Also, try to get the Eclipse 5030 or Clarion FZ409, they are the best.