Which motorcycle is best for me? Leaning towards adventure bike?

I see this question all the time, but i figure ill put my problems on the board. I'm 21, 6'3, 280 pounds. Large guy, played football and rugby but am proportioned. I have been curious about riding but am looking at what bikes i like. Recently I have fallen in love with the adventure bikes. I have been picky with them, and not liking the dirt bike looks, but more like the cb500x hondas. I don't want to start with such a huge motor but i would feel comfortable on a 400cc to 650cc. With my size i figure I might need a bigger motor anyways. Anyways, I like the adventure bikes, and the style of them. So far the cb500x seems to be my favorite but two problems, looks a little small, and i don't want my first bike to be brand new with the fear of dropping it. Ia m not a beginner, i have ridden dirt bikes and quads most of my life, but looking to try it on the street. Please don't hesitate throwing out any bike that has worked for you before whether its a crotch rocket, or harley. I'm just looking for a comfortable ride and something to have fun with. All the reviews for the cb500x have been great and looks fun to ride. Let me know!

Have you looked at the ERN6?

Just looked it up, beautiful bike. They seem to be hard to find?

I have a Suzuki V-Strom 650 that I'm happy with. Got it new in 2007. I wanted the SV650 but it felt small & a bit cramped so I got the V-Strom instead. I'm 6'1 & 250 & it's plenty roomy. Decent power to cruise all day at 80+. They were upgraded in 2012. Better seat, less turbulence & a little more power. Also looks better I think. Great all around bike.