I'm getting in on this conversation late. Ditto everything Harvey wrote about IT 88, Pursch Igo and Lampeira; the latter two were excellent, better than VDB that mid-late September day, in my opinion.
For those of you who have IT 88, if you're one of the folks who would like to experiment with grafting great but slow growing varieties like the CdDs etc, IT 88 might serve as an excellent rootstock. It's a huge tree at Prusch.