We have been to Vegas a few times in July/August, and even though it has been degrees outside, I still bring a light jacket since inside the casinos is a cool. Top Las Vegas Casinos: See reviews and photos of casinos & gambling attractions in Las “This Casino inside the Venetian is clean, hospitable and very well. May 6, - 12 best casinos in Las Vegas. Best casino for sports betting: Caesars Palace. Best casino for slots: ARIA. Best casino for poker: Bellagio. Best casino for non-gamblers: MGM Grand. Best casino for diversity of table games: Golden Nugget. Best off-Strip casino: Red Rock Casino Resort & Spa. Best casino for foodies: The.