Just hypothetically, if a casino offered these two games and you had been backed off from playing blackjack there (unfortuantely before you had an opportunity to take advantage of the promotions), and were going to fully bankroll a partner (who can count cards proficiently at dd but not 6 deck) which would be better game and what is expected win rate:
game 1- 2d, S17, das, but no rsa. House advantage = 0.19%. 70% penetration.
Promotion 2:1 bonus on suited bj that adds about 0.52% to player
+ if player gets suited bj and dealer has bj, player still gets 2:1. (worth about an extra 0.10% to player).
Bet strategy: Player would bet 2x 25 at < -1, 2 x 100 @ 0 to +2, 2 x $200 @ +2 to +4, and 2 x 250 > +4.
Play strategy: Only taking advantage of two of the 16 illustrious 18- insurance and 16 vs 10. Otherwise Basic strategy.
game 2- 6d, s17, das, rsa. House advantage = 0.33%. penetration about 4.5-4.8 our of 6 decks.
Promotion 2:1 bonus on suited bj, plus player gets 2:1 on suited bj even if dealer hsa bj. Plus one joker added to 6 deck which according to Wong (and verified by my calculations) adds 0.7% advantage to player.
Bet strategy: Flat bet 2 x $250 until joker gone then bet 2 x $25 with joker gone.
Play strategey: Basic strategy
Any suggestion? The promotions are obviously over a short time.