I can tell you who not to use - A-1 Transport and Cross Country. Used them both and althought the prices were fair - service was poooor. Be carefull of insurance coverages- natural diasters( Hail) , driver error and regular accidents - your personal policy may have to respond to coverages , also - pick up and drop off points and once loaded does rhe car stay on the same truck or does it go to a yard and await a different truck
Good luck
Al