Definitely depends on the bunny. I only ever had 2 bunnies and both were polar opposites then (but not so much now).. Okay, so my mini rex was raised by a breeder so she was socialised and loved company and my cousin bought her as a sole rabbit but then didn't give her enough attention. That rabbit, when I finally 'rescued' her, was so deprived and starved for attention she had some behavioural issues which needed to be worked out. She never lked being alone and therefore would have been a healthier bunny is she had been spayed and paired.
Acacia, my current bunny, I bought off a BYB. She was 4 months old when I got her and she had been living in squalid cramped conditions with all her siblings. She was not handled very much and was pretty antisocial. It took about a year before I could hold her with out a struggle and even catching her was a trick I learned due to her nature (dropping a blanket over the top of her to stop her in her tracks). It was awful, hours of sitting in her pen with her finally warmed her up to me but she is now 6. Now she is mature and calm like my old mini rex was. She prefers her space and to be alone but I think wth some time and patience, I could bond her. She is a lot more social now, and grooms her toys. She is bonded to me but I cannot always be there (full time student) so I only realy spend the evenings with her out of the condo. This is a situation where it would be better to bond because rabbits spend hours grooming and cuddling. Bunny-bunny bonding is better for them. Bunny-human bonding is better for us emotionally. It's really up to you. If you can afford the time to bond with your one bunny then by all means. But having two doesn't mean much more in the way of litter and hay and stuff.
