For the last 3 years both of my bikes have been 29ers (SS and Full-Sus). I recently switched back to a 26er full-sus bike and have ridden a friend's 26er SS. The 26ers feel much more fun (flickable) when doing any drops, jumps, etc. at speed. They both have their advantages - the 29ers definitely smooth out the trail but I can feel a little sluggishness in performance and handling (due to geometry and weight) when compared to a 26er of the same frame type. If I had to choose one bike, I would either have a 29er hard tail or a 26er full-sus. Just depends on your riding style and personal preference, I guess...I love having both!