Wow, great set of options here. Both scopes are good. I love the weight and ease of handling the SCTs on the mount. That's also what I love about small refractors as well. In fact, I have used my AT72ED on my SE Mount and also my EVO mount. If you want an easy to setup and start using type of mount, the 6 SE is a great visual use mount. Of course it will do ok for solar system imaging.
Note this ED100 telescope weighs in at close to 30 lbs (13.6kg). So at this point, if this is what you want, you'll carefully choose your options for a mount.
1) Goto/motorized or full manual mount
2) EQ or Alt-Az.
3) weight consideration for future use
#3 is important especially if you are considering atrophotography. With a scope at already at 30 lbs, add cameras, possibly filter wheel, etc, you may need a mount that handles 40 - 45 lbs. If astrophotography is not a factor, ok this only leaves you with #1 and #2 to think about.
There are several options on the manual alt az mount that are easy to setup and get going. There are few gotomorized Atl-az mounts that could handle this scope. There are few eq manual eq mounts that could handle the scope, but for visual use, any that can handle the 30 lb payload should do. For astrophotography use, you have several mounts that will handle this payload that are in the 45lb capacity.
Additionally, a good solid alt az mount will be a joy to use. I've enjoyed both my SE and EVO mounts and I also use a manual mount, the twilight I mount.
There's one other advantage of the SE route. Any money saved can be used for eyepieces or at least a lunar filter. There are other things you may want to consider. Hey, it's always good to know you have options.
Best wishes on your choice and reach back for any questions.