It’s not like choosing a fridge, where there are 500 models available.
There are two autopilot systems commercially available today - Tesla Autopilot and Honda Sensing Driver Assistance. Two more are slated to be released - Cadillac SuperCruise and Audi Traffic Jam Pilot. The rest is an all-you-can-read buffet of press releases about some great tech this one company tested in this one lab (I hear Waymo is great, and Volvo’s is even better).
Pending Cadillac’s and Audi’s road tests in 2018, Tesla Autopilot v1 is the best driver assistance suite available commercially in 2017, even with all of the executive departures.