While you’re considering the various toolkits, you should try to answer the following general questions. You should also make up a list of questions specific to your project.
What is the size of image produced?
What architectures are supported?
How easy is the toolkit to use?
How many optional packages are available?
What exceptional packages are available? (Web-based administration, perhaps?)
How customizable is the image? How difficult is it to customize?
How much does the toolkit cost? Is a royalty involved?
How well is the toolkit documented? Is printed documentation available?
How well is the toolkit supported? Paid support? Active list?
What are the requirements to use the toolkit?
Can a new version of the toolkit ...