allie,allisey[i have a soft spot for that one],al,Alice :] i love the last one as in Alice Cullen. but to make it your own spell it alis.
My friend's (who is definitely a tomboy) name is Allison, but she goes by Ali. So I would suggest that.
Allison Atrocity. Allison Ambulance. Allison Affiliation. Allison Annihilation. AlisonWonderland.
If you like 'Nan' as a nickname, then yes, it is a good nickname.
A good nickname for what? Sounds a bit pansy
Chris or CJ could be good nicknames for Christian.
Privet Allison, uvidyemsya Vuitornik! Hello, Allison, see you on Thursday! Dasvedaniya Allison, uvidyemsya Vuitornik! Good-bye Allison, see you on Thursday!
It does not require a nickname.
A good nickname for Zekrom would be "Black Dragon".
Jaz might be a good nickname
A good nickname for someone named Christian could be "Chris" or "Cris" for short.
Kenster, Ken, Kenny...
Lee is a good nickname because it is part of Emi ly (Lee).