If Willem had Quechua's, WCs, or Immortals I'd put him at number 2. Sure fishing sucks but CRE/FIN is my 2nd favorite trait pairing. Willems traits lets him power REX like a mad man OR power tech to HAs, Cats, or Phants crazy fast. Very very very flexible. Rome is pretty beastly on the lower levels but on Immortal/Deity I find him far less attractive.