I went with Pilot2ATC 2 weeks ago. Fantastic program! Its UI is dated and could use an uodate but its core functionality is rock solid. I considered ProATC but read the dev is slow, still has bugs from previous versions and the forum moderator (if you need to ask questions) is a tyrant. Was not impressed with what I saw.
You can check a box to let Pilor2ATC choose sids and stars or force it to let you fly a certain route with no surprises.
If the develooer could update the UI and work in other things like ATC holds ect. It would be top of the pack more than it already is.