Stars have strongest competitors but also largest player pool so can make most money there.
ACR and Party has some good players but plenty inexperienced ones far more inexperienced players than on Stars.
Rooms like Betonline & Sporstbetting have even more inexperieiced players than ACR and Party but their rake is higher.
Loads of bingo players on 888 and plenty of their tourneys are condusive to such very shallow structures so plenty bingo play there. Plenty bingo play on
ipoker sites too not as much as 888. The fields are less experienced but you have to be lucky on these sites to stand a chance.