I submitted a paper to a mathematical journal, and recently received a Minor Revision decision from the Editor. One of the reviewers suggested an alternative and much simpler proof to my main theorem. The suggested proof greatly shortens my paper. Now, I am in a dilemma.
1) Should I retain my original proof, which I must admit in hindsight, was overly complicated? And then simply acknowledge the reviewer...
2) Should I write down the shorter and simpler proof suggested by the reviewer, and explicitly mention in the acknowledgemnts that I have used one of the reviewers' proofs?
The reason I ask is that I am worried whether going with Option 2 reduces the value/contributions of my paper (the revised one is not my proof after all!), although the Theorem and its implications stand nonetheless. Do I have a better chance of acceptance with Option 1? Is not seeing a simpler proof a ground for rejection of the paper? Any suggestions are welcome (since its a minor revision, it's due in a couple of weeks)!!