Bombay Sapphire gin, is perhaps the classiest and most elegant and complex gin of all. This shouldn't be surprising, as the folks at Bombay Spirits Company, Ltd. have been cooking up gin since 1761.
Bombay Sapphire is famed for its smoothness and its nuance. They use ten different herbs and botanicals to produce Bombay Sapphire, including juniper berries, almonds, lemonpeel, liquorice, coriander, orris, cassia bark, and some peculiar stuff called "cubeb berries" and "grains of paradise." This is a very tasty gin that pricks the tongue and puts the whole of it through some extraordinary calisthenics. And despite being 94 proof, it finishes smooth and clean and without a nasty alcohol burn.
In terms of dry vermouths to pair it with, stick with something dull, like Martini & Rossi's Extra Dry Vermouth. You don't want a wildly herbal vermouth that will drown out Bombay Sapphire's fireworks. And don't even bother with an olive or lemon twist- it just isn't required.