I currently have 3 go to lager recipes (a Bock, a Pils, and a Vienna) that I have been making repeatedly and enjoy. I currently have a frozen yeast bank with one strain (Wyeast Bavarian Lager 2206) which I use for all 3 recipes.
However, sometimes I'd like to brew a quick ale and would like to add a yeast strain to my bank. I keep 4 grains on hand (as you might have guessed, Munich, Pils, Vienna, and CaraMunich).
What recommendations can someone give me for an ale yeast strain? I'm looking for a strain that can give me the greatest flexibility in style and flavors for pale ales, IPAs, brown ales, etc.
I'm not really interested in brewing wheat, Belgian, or Hefe's at the moment.
So what is a good, all-around ale yeast? Recommendations?