It is difficult to pick a favourite.
The one that really intrigues me is Red Intuition. Might have to add this one next year
There are four Delbards in my garden:
France Libre which Zuzu has already posted. Didn't do that great this year - had quite a bit of black spot. More so than in previous years but then so did quite a few other roses.
Mamy Blue - not the most vigorous or healthy of roses but has a wonderfully strong scent and the colour is exquisite.
Edgar Degas - very good disease resistance and quite vigorous. This rose puts on a great show - only problem with mine is it hardly ever shows its stripes
La Rose du Petit Prince - This is a rose I can really recommend. A good grower (it gets big), healthy, lovely perfume and one of my favourite colours.
Any one else with Delbards to add?