The main points have to do with what is being farmed– Pickle and Sushi pairs are all going to experience IL– some of it extreme in the case of Pool 2s like PICKLE/ETH and SUSHI/ETH.
The only tenable strategy out of all of those is perhaps depositing UNI LP tokens to farm UNI– which has recently been proposed here.
Regarding Harvest…I know there were some questions previously with the lack of a time lock on their contract. Also, most of their APY that is reported comes straight from their FARM token distribution. Furthermore, it would be worth considering whether dumping Yearn’s funds into Harvest pools would dilute the rewards to where they wouldn’t be worth it.
Definitely always worth looking out for the best new options, though!