I made a variation on my fresh Butifarra recipe, Butifarra Crua, adding 5 cloves of finely minced garlic per pound. People really seem to like it, especially grilled over charcoal with casing gone smoky and crisp. My own impression is that it makes a good base that, with the addition of a few other seasonings, can be taken in many directions from a basic garlic sausage.
Also, if you are adding water to your sausage mixture, taking the time to put the garlic in the water, bring it just to a simmmer, and immediately take it off the heat to cool, then actually chill before adding the water and garlic mixture to the sausage, yields a milder, rounder flavor.
I've now tried it adding some marjoram and sage for a bratwurst-like sausage, some Polish hunter seasoning blend for a nice, fresh kielbasa character, a little French four-spice, and I've also added some rusk and Cumberland seasoning for a tasty coil on the grill.