alright forgive me guys for being a ReaEvangelist again, but really?! Reapers MIDI workflow beats Protools pretty unanimously, unless they gutted it (again) for PT9. I think with both DAW's it's uncomfortable to switch and that throws people off, i know PT8 got the MIDI engine revamped, I'd just need someone to sit down with me and listen to me say "so how do you do.... " etc. for a half hour before I was getting the proper mileage out of it, goes both ways.
what do you mean by straight to piano roll? you can use the pencil tool to draw chunks (regions) of blank MIDI (on any track) and then double click one to pop up the very customizable piano roll. I'm pretty sure there's also an option (although i've never wanted it) to do an in-line piano roll, PT 7.4 style