Well, being "fanboy" I do think that Barnett won via technique, not size and strength.
I don't really understand people saying all that "Where are Gracies now? They were only good against bums and casuals". Well, it is partly true, but look at this from other perspective.
I mean it is only a family clan, where talent pool is so shallow. And still they provide some top competitors even nowdays. Some regions or even small countries not doing this. For me this is amazing.
For all who think I am a fanboy of Ryron&Rener, I need to say something. I do not like their marketing style, the way they promote themselves. But I do like them as an instructors and creators of Gracie Combatives and gracieuniversity. I mean I never saw before such a structured, well explained and detailed course. Conceptual wise Ryan Hall is doing better, but his stuff is more advanced. For the newbs Gracies are best.