The good thing about Roulette is that it is easy to understand. Every bet, except one, has a house edge of 5.26%. The only bet that is worse than all the others is the combination of 0,00,1,2, and 3. This pays 6 to 1 and has a house advantage of 7.89%.
The only roulettes game I respect are the ones with single zero wheels. I have only found at The Frontier and The Tropicana, although I hear they are common in European casinos. The two in Las Vegas had $5 minimums and each place had only one single zero wheel. The house advantage at these single zero wheels is cut in half, making it a respectable game, but still not as good as blackjack, bacarrat, or craps - when played properly.