Meaning which styles do you prefer to start with and finish with. That is of course if you are not sticking with the same type of beer. Personally I usually start with a wheatbeer, pilsner or a weissbier. Then i have a good sour beer such as a ouide bruin or a lambic. Then i move to a stout. I usually finish with an ipa as i find the intensity and bitterness of the hops will impact my palate and thus the taste of any beers to come.