I'm not much of a gambler myself, but when I gamble I play poker. Poker can be very profitable, but it is very time consuming as well. Betting and casinos, are not my type. so, what's your opinion on what could be more profitable?
i think in a long term you lose more money as you can win...
I think with big bankroll, you can go for long-term on poker. But i think the most profitable type of gambling is sportsbook. You just need find information for both teams and bet smartly.