1028 is a great one to use for Old Ale, IMO - its a strong fermentor, and is the more subtle of the popular English strains, so if you're looking for a ton of esters, might not be the best choice for you. Slightly minerally, nicely balanced profile with just enough aromatics to make sure you know its British without going overboard.
Avery uses it in Old Jubilation, if that helps any...