I honestly can't answer this poll, I am loving these great polls that Gok has put together and until this one have been no brainers for a click on the poll, but the Autobot cars are just all so super rad happy time for me.
As a kid I just ogled the catalogues at the amazing toys they all were and even as an adult I still can't pick an outright favourite, sure there are some weak moulds but to me these are all the ultimate in toy playability (not that I play with my toys *looks at the OP writer*)
It would be easy for me to say my first Autobot car is my favourite which was Bluestreak but I didn't have him for very long because I broke him in the usual spot behind his neck, so Mum sent him back to Hasbro and they sent Wheeljack as a replacement, which is one of the more sturdy moulds. I also have a soft spot for him, and so begins my conundrum.