We all have our favorites, and varied other ones we use regularly. This is my most used hammer, an old doghead I snagged on eBay. It has a pretty flat face, and I use it for bevels and straightening usually. Next one is a hammer from Nathan Robertson, a 4# two face English pattern. I use this one primarily for big operations like hammering in the bevels for the first pass, and upsetting handles and tangs with the flat face. Shoring up the ricasso, etc. Next one is a big ball peen. I use this one for choils and tight spots that need a rounding face. It's useful for those things, but I don't use it for much else. Next one is a Japanese pattern variant from Nathan as well, a 3# one. I use this one primarily for forging in plunges, and setting tang shoulders. My most used hammer for general operations is my Peddinghaus Swedish pattern. It's a French made one, and the faces came extremely rough. I believe historically that's a common thing, with hammer makers figuring the end user knows what and how they'll want their hammers faced. I dressed the face and the peen how I like them. I've found that I use this one more than any of the others lately. I use them all in every blade, but some get used more than others. Are you a one hammer forger, or do you have a bunch of them? Let's see what you've got!