i personally like anders the best. because upgrades are cheap. gremlins are also useful because they essentally act like cobras but are better because they are cheaper in both resources and population, are lower on the tech tree, and dont need a vehicle depot. the only things i dislike about her are her super units (im not that big on hawks) and her power. cryo is useful but i would much rather have mac or carpet bomb.
i also like forge because of ODSTs. they are just so powerul, and i like infantry so much. mac is an escellent power
as for forge, i dont really have anything against him, but i havent ever been able to do well with him for some reason.