I like the first ones, too. However, that may have more to do with the model than the underwear....
Nah, really, if those were my three choices, I'd go with the first, although I do like N2N's tropic boxer briefs for my sized dick and balls. They do this whole lift-and-stick-it-out-there thing that has gotten a look or two, but what really sells me on them is how so very comfortable they are. I suspect guys much larger than me would find them a bit confining, perhaps the way I like the Unicos but they are a little too tight.