I'd go with Miss Smith, followed by Doppel, Tio, Zombina, Lala and Monako.
The rest are nightmares as wives. Getting squeezed like a tube of toothpaste but not in a good way with Miia, holds no appeal, there's also the fact her sexual organs are in the tip of her tail 
Rachnea, trying everything till she finds a way to break me into a masochism, just no way appealing, there's also the fact that spiders feed their mates to their young, no win, no win.
Suu would be like marrying a retarded child with a libido on overdrive and no sense of monogamy.  Plus side she can look like any woman imaginable. 
Papi, well if you want a short marriage with a loli she might work. Divorce ? who needs it walk 3 steps away from her. 
Cerea ?  I am just not man enough  and unless you have a meter long penis, you aren't either.