I used to raise and show rabbits, and mini rex were always my main breed. :) They can definitely be sweet little buggers, though that is not always the case. No matter the breed, though, rabbits can have very distinct personalities. I had a mini rex that HATED to be taken out of his cage, but he would come to the door to give you kisses (right on the lips).
I had a netherland dwarf that hated to be away from me! I had raised her from a kit (I used to take all of the babies from the mum and keep them in a box with a ventilated lid to prevent them from getting chilled or coming out of the nestbox. Then I would bring mum to them twice a day to eat, which is all they do anyway, until the babies are old enough to come out of the box and chase after mum. Kept them safer and made them more friendly). I was at a show one day and left her on the grooming table (a friend of mine was there with her) to go find something in the car. I came back, and the crazy thing launched herself into the air to jump into my arms, then snuggled right in. Lesson learned. NEVER leave her on the table again!
Then we had a britannia petite who was the crabbiest thing in the world UNTIL she was pregnant or had kits in the box. We used to have to put a feed scoop over her when we fed her or risk losing skin! Thankfully, none of her kits got mum's grumpy personality, or she would not have had more than one litter, anyway.
So, long story short...you get all kinds. :) Some love to snuggle and be affectionate. Others are little divas that expect you to do everything for them and never show an ounce of affection back. They sure let you know if you do not give them the attention they want, though!