Interesting scenario, I'd like to pose a question I don't know the answer to.
I have never used speed settings in AnyDVD, and I always use 4X in Clonedvd, I'm in no hurrry, just being cautious.
Keeping in mind neither program can change the burning speed to exceed what the burners firmware is set to.
Lets say you have media capable of burning at 16X, your burner supports this media and speed. You set CloneDVD to burn at 8X, and you set AnyDVD to burn at fast and noisy. Which software has priority and what will the final burn speed be, is it 8X or 16X? Since AnyDVD is active first, does it take control?