Consider me one of the oddballs who preferred MOO1 to MOO2. I haven't played either in a number of years (mostly because I know if I do all my time will be forfeit) so maybe my view would shift, but at the time I felt MOO2 got too fiddly for not enough extra benefit.
That said I did want to give GalCiv2 a try, as I heard it was really good and the ship design was a lot of aesthetic fun, but again I avoided as I knew I would lose all my time into it.
Currently I made the mistake of giving Timberborn a try and now it's gotten it's teeth into me...