And I don't really know what to pick since both games can be fun to play depending on my mood.
Sorry, but i'm not sure what can be fun in clicking your mouse to the big red button "SPIN". I understand why people playing at poker and so on, but why people playing in slots or dice - this is big mystery for me.
Just for illustration:
You buy the "buy in" feature in Sweet Bonanza slots and the fruits start to drop randomly along with max 100x multipliers in 10 free spins. So with putting $2 in each free spin I got a chance to multiply my $2 to $200 less than 5 minutes. The adrenaline will be high and this is what makes slots so different for both entrainment and house edge means.