SIO3 -- I love the Marzens too. Bought a mixed six the other day and had an excellent Marzen in it. Forgot what it was though. Dang it. Sierra Nevada Oktoberfest is good.
I haven't replied yet because this one is pretty tough for me. I change it up quite a bit over time. These aren't in order so I'm not numbering them:
Guinness on tap or from a can with widget
Martini -- mixed about 5/1 Bombay gin and Noilly Prat vermouth; and this sounds hoity-toity, but I do want it shaken (not stirred) because I want the little ice chips in there; olive garnish
Belhaven Scottish ale -- heavy on the malt and just a wee bit o' hop
Bourbon -- Bulleit if I have to name just one. Working on a bottle of Four Roses that's good too.
Gin and tonic with lime -- great summer drink
...and if I can break with protocol and exceed 5
Cyclist/Radler/Shandy: Boulevard Unfiltered Wheat & Lemonade 50-50 -- great in the summer
Budweiser with a dose of Clamato -- it's the drink that makes you thirsty!
Ayinger Oktoberfest
Bailey's Irish Creme and coffee (Christmas morning favorite)
In the world of wines I like the lighter-bodied, more fruit-forward, less-tannic reds (Pint Noir typically, but OZV Zinfandel is really good) and German-style whites (Reisling, Gurwurtztraminer, if they're NOT too sweet). Chateau St. Michelle (WA) makes good ones.