I'm a FruitMenu user since forever, and Action Menus in the OS9 era before that. I'm just really really used to having a customizable system-wide hierarchical menu in my Apple menu, and none of Apple's spring-y dock gimmicks do it for me. FruitMenu also had a few nice "special" items like "Running Apps" and so forth. That said, the Unsanity folks seem totally asleep at the wheel these days and I have to have some kind of navigator, and so far this seems clean, fast, and trouble-free. The only downside is that I have to go to the Finder to access it, but that's only an F1 away thanks to Spark, which I truly couldn't live without :-)