Couple cruiseship blackjack variants - +EV?

[DeathDonkey]

Recently was on a cruiseship and played a bit in the casino when bored. They had two blackjack variants I had never seen before that I wonder if anyone can run a simulation on?

Fun 21: Normal rules + 8 decks, split up to 4 times, double down on anything AT ANY TIME, if you double and don't like your doubling card you can surrender your initial bet and take back your double bet, player 21 beats dealer immediately, player BJ beats dealer BJ, all Q's removed from the deck.

Face up blackjack: Normal rules but dealer's hand is dealt face up, no surrender allowed, can only double on 9, 10, 11, dealer wins on pushes, blackjack pays 1:1

First game I thought was +EV if you make the right basic strategy adjustments - ie: hit on 13 vs a 3 and some other marginal spots where the fact that there are more low cards in the deck will make a big difference. Second game I didn't play but read the rules for, decided fun 21 had better EV.

-DeathDonkey