Amir Khan and Canelo Alvarez
Canelo is a tough competitor. In light of these facts, boxing professionals and many on social networking have collectively expressed their concern regarding Khan taking such a massive step up from lightweight to welterweight, against a boxer who has fought as a welterweight, light middleweight and middleweight. Khan's record is 34-3, which is good. However, he is sometimes teased online for having a "glass chin" due to notable knockouts. His last few fights have gone in his favor.
Losing to Canelo would be less damaging than losing to Brook. Canelo has reached an elite level of boxing, making his fight the bigger international draw. Brook is less famous, but still successful and known in his own right. Losing to Brook would damage Khan's prospects far more than losing to Canelo, who is further along in his career and development than both Khan and Brook. Canelo has far more fights and wins.
Brook needs to chase big fights of his own and not wait around for Khan to sign the contract to fight him. It would be a great fight and one British fans would appreciate on home soil. However, Khan needs to raise his profile and continue to develop his skill. In all the time Khan has repeatedly refused to fight him Brook continued to progress. Take a page out of Khan's book and go after the big dogs as well. As stated in the April 6, 2015 Judiciary Report article Amir Khan Dodging Boxers Kell Brook And Timothy Bradley, "Brook needs to focus on getting an audience with Mayweather and or Pacquiao and not wait around for Khan. Try to get a fight with the legends.