I think the Pennsylvania 6 deck game have less house edge than the El Cortez single deck game. It's nice that some of the good PA rules are spilling over into AC, but you won't find as good of a game in AC, even at the high limits. Even if Nevada adopted Pennsylvania's blackjack rules, the Vegas casinos would still make a killing. Ploppy strategy has a 1-2% house edge, stupid ploppies play at a 5% house edge. A difference of a few tenths of a percent won't make much difference to the casino's revenue, but it makes a huge difference to our EV. The penetration is pretty good at my usual PA casino, 1-1.5 decks cut out of 8.
I didn't like SugarHouse. I went there the first week it opened, and noticed only a few $25 blackjack tables, all of them with a line. Wonging was impossible, and I don't want to back-bet ploppies because I don't trust what they'll do, and it's almost impossible to convince someone to split tens or double down soft 19 even when that play is the right thing to do.