I haven't owned enough breeds to make a real choice, but for now I'd say Nethies because the one I've owned were the most clever, active, and the absolute worst when it comes to attitude / damage in the house / handling / energy levels. Somehow, I really love that they are so small and won't hesitate to bite you and then leave while scornfully shacking their back paws like 'you're trash, human! I am most DISPLEASED!' Aki did more damage in my home than all my other animals combined (including the 55 pounds dog), she is also very very resentful and she hates everyone she meets during the first 6 months or so. Her character is the absolute worst, she would do horrifically with children, but she's my favorite out of all the rabbits I've ever owned because she's got such a big personnality- she's 8 now and I'll be devastated when she'll die.
I've never owned one because I go on holiday by the train and take my rabbits with me (I go to the station by foot, carrying the rabbits for over a mile and a half and I swear they get heavier everytime), but I've always wanted a Flemish giant. They look really nice and everyone says they are easy going and have a good temperament. I guess they are the opposite of Nethies? ^^