Hello Ian,
If I had to start again, I would start with Sky X. It brings a lot of features with it that makes the use of telescope, camera, dome, focuser, filterwheel and camera rotator
much easier. You have very well working software bundle to control them all in one program.
I think it would help if you make a list what you want to do or what you expect to do in the future. Then compare the different software and make your decission.
Best regards,
Michael