Tropicallvr

I just got a nice Tall brazilian from going bananas, and now I'm thinking I should at least get a dwarf to do a proper cold hardy test with both.
Has anybody noticed a difference between the two in terms of hardiness?
Or for that matter a difference in hardiness between the dwarf and tall orinoco's? My tall orinoco did really well on the warmer coast, but I gave my dwarf to someone with a greenhouse, so not much to compare.