Since gambling is strictly on luck, I prefer to have my luck try on it than choosing sites under the control of someone else's luck over mine to do that for me, which I won't feel happy over the outcome, that I lost my bets under someone else predictions and not mine. However, it's far better and acceptable that I have my bets lost on my own predictions and findings not directly on sites that fall under the control of someone's else luck that I don't know how their predictions or bets were analyzed