Much like Poker, in tournaments you are looking to cash high up (a win is huge). But winning is really, really tough and you play very differently (not the optimal lineup likely as you'd like a stacked line or powerplay in hockey) My buddy Rob has had great success in tourneys, considering he doesn't play that much and after his success he didn't really up his entry fees. here is his results summary
https://rotogrinders.com/profiles/rrmack34
But without those couple big wins (January 31st he won the hockey, I think that was $1000, and just last week he had a 4th in hockey and forth in basketball tourneys), he's having great success but take away those big wins and he's doing worse than the 50/50 or double up grinders. If you are playing for fun...do the tourneys. If you are trying to make money and don't mind working a long time to get up there...play the grinding method. Or do the combo of the two.