I started out with Dos Equis/Corona/Tecate as my go-to beers a long ago. Moved to Blue Moon a while after that. Now, Sierra Nevada Pail Ale is my go-to beer for stocking the fridge but I try to mix it up if I go out to a bar or HEB has something interesting.
I can't remember a lot of what I've tried as it's usually just a random selection, though I think I've given a good number of Belgian Abbey style beers a good variety of Pale Ales.
I've also tried a lot of the bigger named international beers: Sapporo, Heineken, Presidente, Famosa, Xenu, Old Speckled Hen, San Miguel.
I plan to pick up Arrogant Bastard next time I go shopping, because I here a lot of good things about it and Stone Brewers.
I guess I'm just trying to taste some of the beers that are constantly being referenced to in homebrew circles or that serve as good representations of what the various styles look and taste like...