Incondicional

[ROBINDESBOIS]

To say that you are " un ferviente admirador de alguien " Un seguidor incondicional de un partido político " do we use the word staunch like in an staunch friend ???

do you know of any other ways to say those two beautiful words, incondicional and ferviente ?

[Tomisimo]

I'd say:

a fervent admirer of someone...
an unconditional follower of a political party...

You could also use "staunch follower".