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Mobil 1 is totally fine. If you absolutely require a high performance oil, then Amsoil or Motul is probably the better choice over Mobil 1. I am not a salesman, but here are my thoughts and a brief analysis as a humble physicist:
Motul has a flash point of 428*F, Mobil 1 is at 435*F, and Amsoil's flash point is at 450*F. The kinematic viscosity at 100*C for all three is 8, 8.7 and 8.8, respectively. The TBN's are 11.3, 8.8, and 12.6, respectively.
So in theory, Amsoil is more resistant to burning, is a little thicker at operating temperature, and has the higher resistance to acid chain formation compared to the other two since it has a higher alkalinity rating. So, as my legal writing teacher with bitchy resting face frequently asserted, "How does this affect me, and why should I care?"
If you change oil every 7k miles, it doesn't and you shouldn't, but if you go up to 15 or 20k miles between intervals, I'm unsure that the other two options would last quite as long. Motul will and does last a while, having a TBN of 11.3 and all, but the flash point is 22*F lower so it will burn off sooner in extreme conditions. In a racing application, a Δ of 22*F is very significant in terms of operating temperature leeway when comparing these three. Will most of us ever notice or require this? Absolutely not.
I hope this helps the OP choose the right oil, and if anyone dissents, even an iota, kindly offer your discourse.
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