Andi, I think Eyeconic Pink Lemonade and Peppermint Pop are here to stay in commerce for a few years, so this won't be your last chance to buy them.
I'm not going to give you any advice on hardiness because they're all hardy in my zone, so I have no experience with winterizing. I do want to say something in favor of Lagerfeld, however. I haven't experienced any problems with it whatsoever. It's been growing happily in my garden for years and is one of my least temperamental roses. It's only hardy to zone 7 and it doesn't grow well on its own roots, however, so that might be the reason people have problems with it.
When one of my friends comes over tomorrow, I might take some photos of her standing next to some of my grafted hybrid teas and grandifloras to show you how vigorous they are. I pruned them down to about 2 feet in January and February this year and they're already about 6-7 feet tall. Most of the own-root hybrid teas and grandifloras in my garden are never pruned because they never grow beyond 1-2 feet tall.
