a logical approach
Well after going back and forth and back again, I've finally decided (for now) to finish the album project using Logic. There were a number of things that went into the decision. Among my items floating through my transom:
ProTools has better "ergonomics" for mixing. The solo and mute buttons are well placed and colored, and when you mute a track the meter is still active, showing you if there is a signal. In Logic muting the track kills the meter. Otoh, soloing a track in PT gives you only that track...if the signal is bussed anywhere (like to a reverb) you still only get the dry track. Logic solo gives you the track and any busses. I'm not sure which of those I prefer...depends on the day.
Editing across tracks is easier in PT. This is important if you need to tweak a number of tracks at once (like all the drums or guitars). PT is dead simple in this area...click and drag. Logic is more convoluted. For this project though, I don't forsee editing across multiple tracks.
I have a bunch of virtual instruments for Logic (organ, ePiano, sampler, etc), and the implementation is flawless. I think I'll end up adding some keyboard sweetening bits as I go along, so this is an argument to use Logic.
Editing single tracks is easier for me in Logic, since it has a separate sample edit window. I will likely use this to pull out guitar riffs to loop, and I find I have an easier time in Logic than in PT.
Plugins. I bought VintageWarmer from PSP Audioware. Great plug. I got the VST so I could use my converter from FXpansion and use it in Logic. I will have the RTAS for PT available in a day or so though. Other than that, it is a push...Waves v4 work in both (RTAS for PT and AU for Logic), although the internal plugs for Logic are a bit better than the ones in PTLE I think.
Sound. I had some weird smearing going on in PT two nights ago. It was driving me nuts. I haven't been able to replicate it, and it seems to have cleared up, but it didn't give me a warm fuzzy.
Processing power. In PTLE on my dual 1 gig G4, a session with about 15 tracks, a few reverbs, and a few compressors is at about 50% CPU use. That actually is beginning to push it, as PT doesn't tolerate processor spikes well. The problem is that I will likely end up needing a few more plugs to tweak things to make up for some tracking problems. Doing it in PT would be dicey. In Logic, I can "freeze" tracks that I've used with plugins, and that effectively frees up the CPU for other plugs. A very cool feature.
So when push came to shove, I decided to go with Logic. And bought a new Logic Control extender so I've got 16 tracks of control surface. Hazaa!