I totally agree with your assessment with the qualifier that I do not know Mudiay's heart.
The fact that he has bust written all over him (due to injuries) is the exact reason my gut says J. Buss will take him over Russell. Think of both of our favorite Center: Andrew Bynum.
Getting back to the Mudiay/Westbrook comparison: Mudiay, even if he performs at Westbrook's early years level still has recent Westbrook injury concerns after Beverley took him out. Which is reason enough for me to take Russell over him and reason enough for Buss to take Mudiay over Russell.
Can you tell I am a diehard Laker fan? lol.