First off, finding personal finance software for OS X is not a trivial task. One site (http://tinyurl.com/23bm7v) has over 250 responses to a bloggers request not unlike the one posed on this site.

iBank’s flow view is clever, but the illusion of simplicity is lost in the need for so much clicking and hunting to gather information. Cha-Ching is cute for getting images of purchases, but it is more an electronic checkbook and less a budgeting tool and particularly weak on analysis.

Moneywell uses perhaps the most tried-and-true approach: envelope budgeting. Actually they use buckets rather than envelopes in keeping with the flow of money metaphor. Because everything is on one screen, the data is readily available textually, numerically, categorically, and visually.

(As for the usual disclaimer, I am in no way associated with any of these products. Just looking for a good budget app.)