I think it's pretty important to figure out what you expect from a framework. If you want to make it easier for other people to come on, perhaps open up to an

I think it's pretty important to figure out what you expect from a framework. If you want to make it easier for other people to come on, perhaps open up to an ecosystem of open source contribution, you want a framework with broad appeal. Yii or Drupal would be good choices. If you want a solid foundation, that you personally will benefit from, you either want something that is well engineered (perhaps even slightly over engineered) or something really minimal, that doesn't get in the way. Depending on you own experience and/or taste.