Plotwise? I feel 2001 had an immediate grip on me, but I think 2015 is showing like it'll have promise as time goes on. 2001 had this nice mysticism to it, I feel, with some more focuses on environment and aesthetic I suppose. Terminology like Rahi and Kanohi added to this, of course. I don't mind 2015's simplification in this regard, however. Setwise, I already feel 2015 is the clear winner. I've had no experience with "CCBS" before I got my hands on the new ones, and I came out feeling really impressed. Besides the additional articulation, managing posability even with the gear function is rad. The Protectors and their cannons are rad, as well. And I honestly really like the LoSS, I get the vibe we'll be seeing more like him but bigger come summer.