Which language is the easiest to learn?

I have not learned or studied many languages. It does seem generally speaking that the languages that are the easiest to learn are those that use the same alphabet as the native language of that person. Also when which is that are limited in slang words and expressions would be easier to learn that knows that have many slang words and figurative language in them.

Also languages that have a lot of phonics rules and they have many exceptions to these phonics rules in grammar rules would be more difficult to learn. So I believe maybe French or Spanish would be the easiest languages to learn. They use the same alphabet as my native language and there doesn’t seem to be many exceptions to the grammar rules.