Over the weekend, I bought the "new" Noilly Prat vermouth, and while it's very, very good, it didn't work for me. It's not as sumptuous as Lillet Blanc, which, though it's not really a vermouth, makes a nice martini, more intensely flavoured than the old US version of NP, but not as musky or bitter. It's really good, mind you, and is great for exploring the classic dry martini, the way it used to be before the now discontinued US version became the vermouth those of us on this side of the puddle grew up on. (Not that it was in my sippy cup as a child, or anything like that...) But, it's intense. I found that my normal 5:1 martini was overwhelming with the vermouth's character, while a 7:1 or even 8:1 was much better, and much clearer. More experimentation is called for.
I also bought a bottle of Dion. It's more expensive than the NP, but to my tastes, it's worth every cent. It's got a wonderfully sophisticated flavour profile, and combines beautifully with a great gin for a refreshing, bracing martini that delivers. It's earned a permanent place on the shelf. Except, of course, when I'm taking it down to mix martinis...
The real surprise, though, was Citadelle gin. This stuff is remarkable. It's not as austere as Beefeater, and a not quite as hot. It's marvelously complex, comprising 19 botanicals and quadruple distillation. Clean, yes, but also loaded with nuance. The juniper is forward, but not aggressively so, and every sip seems to evolve from the previous. This is now my #1 gin, I think. Again, more research will be required.
It's not a bargain gin, but it's not expensive, either. A little more than Boodles, less than Beefeater.
As an aside, I find that Beefeater needs to stay on the ice a little longer than many gins, because of its higher proof, and this makes it easier to drink. To me, it's not a sipping gin, but a great martini gin.