I use martingale strategy it is easy but high risk.. need big bankroll 
I don't know what is the best strategy..
You need a big bankroll for martingale but you also need big limits in whatever game you are playing in your favorite casino, but I think martingale sucks as a strategy because you only need a few losses in a row to never see your money again.I don't know what is the best strategy..
We all know that martingale strategy is very risky you really need a huge bankroll to sustain on a long run at the very end. If you got a small bankroll and you want to to use martingale as a strategy this will be limited though.
I use also martingale strategy sometimes but it is really sucks, I got limited only bankroll when I am playing. More losses than winning if my greediness explode I all in my money that I deposited before playing.