Kind of a biased question^^ But still the Android tablet (preferably the Nexus 7 even with the Nexus 9 already anounced).
HDD (pro: more storage space, cheaper / con: mechanical -> more points of failure) -or- SSD (pro: fast read/write speeds, no mechanical parts -> less points of failure / con: less storage than HDDs/more expensive, possible performance degradation over time)?