Im running LP9 and PT9 on Mac with 28 G-RAM. I've always loved PT from the beginning, but I'm having less (pain in the butt issues) with Logic Pro 9. If I had to choose between the two, I'd take Logic. It's seemless, export MP3's without payin for it .., Master with Waveburner (A Generic Master, but gets you in the ballpark). However, I'll bring my best to someone else to master. And they will prob use PT for files ...but .... as I'm doin right now, as should you.
Always A/B results.