SPCDRI wrote:To have some variations in the BBEG?
The real challenge is what is the Fighter supposed to be doing that Monster+Template+Level isn't going to do?
Half of my point is there isn't much variation that you can find in a BBEG that's not available through some other more mechanically sound channel as a GM.
One of the things that make fighters "special" is they theoretically get big numbers without lots of buffing (though core martials tend to have better numbers overall so this idea is kinda meh). When numbers are their game rather than lots of cool stuff to do with them, there's little that they bring to the table to make them stand out as an interesting BBEG other than what you add in or would be available through any general brute.
Contrast to my mini-BBEG Captain Scurvy the Pigmy Pugwampi Pirate. He is a diminuitive pugwampi ranger, his animal companion and trusty steet Skitters the warf rat, and his high sailing gang of gnoll pirates known as "Scurvy's Sea Dogs". A feisty little scallywag, he has run aground with the party a few times and always slipped away bidding them a jolly fairwell and better luck next time!