Only thing i'd say, pick what you feel most comfortable with, if you get the chance try out different homunculus and see what you like most or what fits your character the best.
I love my Valimirth though i'm a brewer from origin, i transed yesterday and wanna use AD to lvl myself. However i'm not planning to take a different homun to lvl better/faster whatever, cause some day i wanna go back to brewing again.
I hope you will find a good way/homun that fits your style :3
Oh and btw i got like 500 plant bottles to sell if you like /offtopic
Time zone GTM+1
Kittie- 99/70 Brewer Creator Do a Little Dance 99/70 WoE Gypsy