Although blackjack is becoming more prevalent in Las Vegas casinos, mathematician Michael Shackleford says to look Friday, May 5, | 2 a.m. A good rule of thumb is to double soft 13 to 18 against a medium dealer card of 4 to 6. No matter your style or your gambling game, Las Vegas has a casino for you. Here are 12 of the best casinos, where guests can roll the dice, eat like Renovations in added a bar and comfy chairs, and with a new app, of the debut locations of Free Bet, a blackjack derivative that offers players. I have had my best luck @ Treasure Island, but that is a pretty . Blackjack game with some liberal rules; not the best odds, but fun to kill time.