christof coetzee
Keep in mind this comparison only focus on features, it might also be bias based on the amount of developers using a particular framework, whether they are novice programmers or not. In my opinion Zend Framework is for the professional developer who needs a reliable solution for medium to large, quality, standardized solutions.
ZF has IBM and The Zend Company (Official PHP Company) behind it...Zend Framework is a serious MVC framework and the preferred solution for enterprise solutions.