Finding good personality matches/giants with small territorial buns

[hoppy bunny]

I've started looking for a husbun for Vienna again, she's medium sized and can be quite territorial. As I learnt with poor little Oreo who passed away within a week of having him. She didn't relax for the whole of the bonding process and barely made any progress. She can be a very scary fighter if she wants to be. Is there a specific personality trait I should be looking for? Her previous friend was Clent, a small, grumpy and dominant over food bunny. Would she be less inclined to fight a giant? She was always the first to start it.
Bunnies I've been looking at:
http://www.rabbitrehome.org.uk/search.asp?inlocation=DY10+2RA&RabAge=34&RabSex=m&RabBond=Single
http://www.rabbitrehome.org.uk/moreinfo.asp?RabID=31988
http://www.rspca.org.uk/allaboutanimals/rehoming/petsearch/details/-/Pet/THEO/ref/BSA2009528/rehome/
http://www.rspca.org.uk/allaboutanimals/rehoming/petsearch/details/-/Pet/ALFIE/ref/BSA84453/rehome/
I want to try to find one close ( less stress ). I feel so sorry for golightly, but I couldn't realistically take him on ( I have an eight year old brother who, although is very used to bunnies, definitely makes us not an adult home)

 

[xBinkyPatronusx]

My female is very dominant she is definately the boss! She is a dwarf lop but pretty damn big!! We bonded her with a Nethie cross and the fact that he was smaller made it easier for her I think. They loved each other and have been perfect since. They both have a dominant side and neither will groom me but they seem to get on really well. I have heard that giants can be really placid so maybe that would be a good choice.