Vodka is my favorite alcoholic drink, I drink vodka every week (not something to be proud of... but... well...) also I work in a night club so I've tried many.
I've had many favorites in my life, atm Ciroc is my favorite but what tastes good for me might not taste as good for you.
IMO:
neat = Ciroc / Grey Goose / Ketel One
vodka + lime + soda = Ciroc
vodka + red bull = Ketel One / Belvedere
vodka + tonic = Grey Goose
vodka + lemonade = any vodka will do
vodka + juices = Ciroc, Belvedere, Grey Goose, Ketel One and Snow Queen
vodka + coke = replace the vodka with dark rum
vodka + diet/sugar free mixer = are you joking???
If you want your vodka as a martini or cocktail then things will change, because different vodkas will completely change the taste of the drink.
I've found that Karlsson's Gold is really good as a shot or neat, it tastes great, but it is horrible if you mix with ANYTHING and I mean anything.
I used to like Absolut but now I don't enjoy it anymore.
Royal Dragon as some posted photos, the bottle is nice, the dragon inside the bottle looks cool, but I don't know... for the price you can get better stuff... as a Gift is great.
Crystal head... what to say.. Great bottle, that is it...
After the 4th drink, doesn't matter, they will taste the same as you are ****** already
Also as a reference, Kettle One is the house vodka where I work.