I thought Baccarat was the closest casinos got to 50/50. That said, Roulette provides you with "true" odds, essentially eliminating the house advantage for those players disciplined enough to stick with it.
There are a few single-zero wheels in the US - they're more common in Europe - but even there, the house advantage is always and immutably 2.7%. And the single-zero wheels usually have high minimum bet, to discourage folks from sitting too long.