I absolutely love these donuts. I've been coming here for over ten years and the owners are the nicest people you'll ever meet. Al's donuts is conveniently located right across the street from UNLV. I'd highly recommend any of the bars or the cake donuts (they look a little small but are fillingly delicious). All the donuts are way bigger than similar ones you'd get at Krispy Kremes and twice as tasty.
For those seeking to satisfy their donut cravings, Al's will really hit the spot. If your in a rush they also have a drive through and take phone orders.
UPDATED* Oh for those on the west side, they are affiliated with Ronald's Donuts on Spring Mountain. Turns out the owners are related, baking these tasty donuts apparently runs in the family