Technically the solo2 is better hardware wise, as it has vfd display, gigabit ethernet, 2 card slots and space for internal hdd.
However it is fixed twin sat tuner, and only 256mb flash, whereas the solo Se (v2) has twin pluggable tuner, so you can have sat or cable / terrestrial, and 512mb flash, but no vfd and no space for internal hdd, only 1 card slot.