Ultimately it's your work so it's up to you how you want to release it. BSD/MIT aren't really any more or less free than the GPL because they still guarantee the four freedoms. The GPL just prevents downstream projects from denying those four freedoms further down stream, which is seen as important in the free software movement, but it doesn't have to be to you.
One thing to keep in mind with these permissive or "pushover" type licenses although they are free software licenses, normalizing them means that the proprietary software industry ultimately gets to choose what is allowed to be released as free software. There is a warning that "business friendly" free software licensing does not ultimately mean business will be friendly back, especially in an age where there is increasing concern over proprietary software companies taking advantage without either giving back nor funding upstream projects.