My favorite is free bet blackjack, which apparently has spread to several other casinos on the strip. Had to wait a couple of times for a seat. This place gets pretty crowded on any given night. My wife played the wide variety of slots while me and the boys hit the tables. Casino Royale never disappoints with their $1 Michelob bottles and very friendly and fast bar and waitress service. Texas Hold EM tournaments are more my specialty. I prefer the lower limits on Blackjack, craps, and roulette, mainly because I'm not that great at any of these.
Of course if you want to play $15 - $25 per hand, you can. $5 limits around the clock! I like to do Vegas on the cheap, and have become pretty good at it.
Casino Royale has become a favorite place to play over the last few trips. Came to Vegas on October 6th through the 9th with my wife and a couple of friends to de-stress, stayed at The Linq (which is an awesome place).