I think you'll be very happy with both!
My family runs a garden center and we carry David Austin roses. They're poor sellers (almost all roses are besides Knock Outs...sigh) but we love them so we don't care all too much
We carry both of those and they're excellent choices and we've found the disease resistance quite good. We've tried probably 20-25 different varieties of DA roses and these have been the best for us:
Lady Emma Hamilton
Queen of Sweden
Golden Celebration
Princess Alexandra of Kent - we have a hedge of these at the store in front of an Emerald Green Arborvitae screen with delphiniums between the roses. It's beautiful in full bloom. Need to add boxwoods in front of the roses that I've been saying I'm going to do for two years now.
Claire Austin
Mary