More can be written about this, but you might like to start with some previous discussions.

"What would have happened to Hitler if he were captured alive?" by /u/Georgy_K_Zhukov . Also, /u/Joltie pointed to "What were the Allied plans for Hitler (before his suicide)?" , in which /u/Jan_van_Bergen covered Churchill's ideas specifically.

This is not to discourage discussion. More questions, data, and debate are welcome.