I think Logic has always been a solid sequencing app, with less focus on live recording. ProTools and others have focused on live recpording and less sequencing. That said, the last couple of years, things have come closer together (Logic getting ebtter at live and PT better at sequencing).
If you are a FCP guy, you might also note that SoundTrack Pro (a part of Final Cut Studio) has gained great ground since 1.0. I don't think you can record into it directly, but it does nice multitrack editing, and if you are used to the FCP UI, you'll be right at home.
Don't forget that GarageBand can record multitrack, and depending on needs, might do the trick. Also, if you are a FCP/S owner, you have QTPro. QT can be used to capture audio from any number of tracks and sampling rates. Just setup a default device in the Audio MIDI setup and you are all set. You can even aggregate devices in AM setup and QTPro will follow that. Of course after recording, you'll need an editor, so that brings us back to your original question. But, for quick on it's feet multitrack recording, QTPro is pretty solid.
And a little background on Apple-branded audio tools. You mention that Apple has focused on FCP and not audio. I disagree. Apple has put tremendous effort inot FCP, you are right. But bear in mind that Apple's main competitor in that space is Avid, who also happens to own ProTools. So Apple has set out to compete and has done so very well, first with the aquisition of Logic, and then the creation of apps such as Garageband, SoundTrack Pro, and a CoreAudio. Apple is better poised to be the choice of a complete package in this space, moreso than Avid. The interoperability between these apps is awesome, to boot!
Good luck and let us know where you land.
Me? Record with QTPro, and edit in SoundTrack Pro. Logic was too cumbersome for me to get my head around, and I didn't need all of the plugins/effects. Also, take a look at Logic Express. Main diff is the set of plugins you get.
keytohwy