Drink local is my motto, and this Brewery has what you're looking for if you love local craft beer, excellent guest taps, Chic and nice ambience, and good company.
Tenaya Creek is a staple of Las Vegas breweries. They have some really great seasonal beers to offer, and you can get their Staples year round. I love coming here in the summer/fall to drink the tandem double IPA. There are lots of TVs to watch sports on, friendly bartenders, food trucks outside when it's busy, and a really nice selection.
My favorite thing is how you can get any size of any beer. From a large pint to a tiny goblet, I believe I saw four different sizes. I love this because you can try many beers instead of having to fill up on just one. The staff is super helpful and really make you feel comfortable if you're drinking alone or with friends.