Id go for the Ego 11 but thats because im a PE fan boy.
I have had an Ego 11 for over a year and never had any major problems if any at all, very efficient. but if you do go for the ego 11 i would invest in a DART bolt as this again improves almost every aspect of the marker(my personal opinion).
as people have mentioned before id try and get a hand on both just to get a feel of each one.
id imagine they would both have their trade offs with each other though, spoolies are much quieter but i think they tend to be less efficient.
i've heard that dm's need regular maintenance or you're going to run in to trouble, and again from what i heard trouble shooting dm's can be a nightmare.