Quick Answer: What Is the Best Mount for Most Beginner and Intermediate Imagers?
For most people, the HEQ5 class is the best first serious astrophotography mount. It has enough capacity for typical 60mm to 100mm refractors while staying manageable in weight and setup complexity.
If your rig will stay very compact, the CEM26 class is easier to carry. If you know you are moving into heavier tubes or dual-camera systems, the EQ6-R Pro class gives more long-term headroom.