They are both casino so meaning there is no thing like what you are saying. You will lose most of the time in both sites no matter what their house edge was. Even your going to play in 0% house edge, the same thing will happen, you will lost most of the time and you won't have an easy win.
You nailed it,but there are good technics to beat a casino as we know from recent history without h/e.
Even your going to play in 0% house edge, the same thing will happen
IMO you dont have enough knowledge about "house edge".House edge takes it's peace of cake from total turnover which made by gamblers. You will have exactly 50%/50% chance red/black,odd/even without house edge. For example, the wheel on the American version has a double zero (00), which takes the house advantage to 5.26% compared to 2.7% house edge single zero(Europan) roulette.