Yoop is there anything meaningful to using glass for wine/secondary? I use a variety of plastic/metal/glass for both stages, but am just doing my first wine kit and was planning on using a Better Bottle for secondary.
Also, can you link to your favorite wine recipe/kit?
Well, a Better Bottle is fine for secondary. I use them, too. They are great for dryhopping beer, and aging it a bit.
When we're talking about wine kits, the longest you would leave the wine in the carboy would generally be under 90 days. That is not enough time to worry about oxygen permeability issues. Now, that doesn't mean that the BBs ARE oxygen permeable, I just don't use them that long as a rule. My glass carboys are definitely trustworthy long term (I'm talking at least 6-12 months here) for bulk aging.
I've never thought about using stainless with wine. It just never occurred to me, to be honest. Wine is very acidic, but I know we ferment beer in stainless conicals (if we can afford them) all the time.
My favorite wine recipe/kit? That's a hard one. My favorite "homemade" wine is my oaked chokecherry. I'll have to type that one up. My other favorite is my crabapple wine. It's excellent. For kits, I've become a big fan of the "crushendo" kits. They are bigger wine kits, with more juice and with grape skins to ferment on. My favorite so far was a Cru Select tannat/merlot blend. It was a limited edition, and while it's still very young, it's a fantastic big bold red wine. It's inky dark purple, and oaked, and wonderful. For the cheaper kits, I've had very good experiences with the Winexpert kits, but I do detect some "kit" tastes in them.
One of the best tips I can give for wine, regardless of glass or plastic, is to top up as instructed in kits, and always in country wines. You want almost NO headspace (ullage) once primary is over in wines. That will go a very long way to protect the wine from oxidation.