Fashionable gins - are they what they claim to be? I have always enjoyed a G&amp;T.  I have my favorite brands, not only of gin, but also of tonic.  But I have noticed that there is a whole slew of them now.  

So, how do I know which ones are made properly, and which ones are just alcohol and flavor, without buying and tasting each one in turn?
Gin is very simply defined as


  a clear alcoholic spirit distilled from grain or malt and flavoured with juniper berries.


So your differentiation between "made properly" and "just alcohol and flavor" is meaningless.

Many of the finest gins are made by steeping juniper berries and other botanicals in the distilled spirit. Others are created by passing the newly formed vapour through a "botanicals basket" prior to condensation. Whichever way they are created, they are still gin.

So all the ones in your picture are "proper" gins. Many of them are really nice (that Caorunn is good.)

Myself - I'm a big fan of the Gilt Single Malt Gin, as well as my own gin - the Metaltech (which is only for sale at our gigs.)