It's 50-50. Higher chance - lower payouts; lower chance - higher payouts. If you go for low payouts, it's going to mean more bets which means more times you can lose or win, but in the end it's the same result.
Still doesn't matter. I've seen some people who tried to go with high bets on 90% win chance. True, You can usually win some bets in a row.
But how long would it take for you to lose? Because it will happen sooner or later.