I've used a lot of task managers in my time: OmniFocus, Things, Hit List, ToodleDo, Nozbe and more. The only one that helps me feel like I am in control (as opposed to feeling like the software is controlling me) is TaskPaper.
I am always asking myself, what is the fuss over such solutions? In the end you are recreating a working environment (let us say, OF) by building pendants to Perspectives with saved searches and a lot of extra scripting to get the due items, review and reminders working (is there any pendant to 'defer' and Forecast?).
Remarkbox