I would choose bigger bonuses with lower wagering requirements. Sometimes wagering requirements are very exhaustive, and they are not even worth mentioning. But some bonuses are great. As for RTP, it doesn't matter to me at all.
Worst case scenario what if you have a load of bonuses but with a bad RTP that makes you lose everything, if you have a high RTP there is no way the bonuses will be worth it after all you will play them all away since the casino already set a high RTP that make it impossible for the player to win. So I prefer better RTP to loads of bonuses.