The Imperial fists are my personal favorite. I love them because they are great fortress builders and take on a defensive role in most battles. They like termies which is also a plus from my point of view. I like yellow. Their stubborn and that suits me just fine. And they defended terra and the emperors palace against a huge portion of Horus' army when he tried to take the Imperium. They got totalled but kudos for the effort.
A great tactician knows that victory is one part planning and nine parts faith
Remember Alex arrogance killed the person nobody liked.
Witch hunters Order of the Purging Blade Tally
Wins - 9 (2000 pt space marine force)
Losses - 3
Draw - 3