My favorite commonly available wheater is a blend actually. Old Weller Antique combined with Weller 12. I'm still messing with the proportions, but I currently have 60% OWA to 40% W12 sitting in a bottle that's quite nice. I learned about it from www.straightbourbon.com where the vatting is it's eponymous blend.
As a whole though, I prefer bourbons with a higher rye content, so wheaters tend to get short shrift with me.