While I haven't personally owned a single ARRMA product, I have seen a balanced number of both ARRMA and Traxxas owners run their respective cars at the track in my area to make personal observations of the types of crashes and corresponding breaks to see that ARRMA is clearly more durable than Traxxas. I used to be a Traxxas Fanboi and actually maintained a Slash thread here:
I used to believe that Traxxas was very durable until I realized that I had to make a bunch of key upgrades to mitigate the myriad of design flaws with their platform and then it dawned on me that after so many upgrades from other aftermarket brands that I would've been better off buying a race grade platform in the first place.. shrug
I still prefer race grade over ARRMA, but if I was forced to buy a RTR today I would go ARRMA before Traxxas.
The king of bashers is TEKNO by a landslide.