Which Payment Predictor algorithm do you rarely use and why?

The objective of this post is to understand the usage patterns of different payment predictor algorithms on various customer sites. Some of the majorly used ones are: #REFS, #DTL_TLR. However, there are other algorithms which when used or if added to the payment predictor method, will lead to increasing the HIT ratio and reducing the manual interference by the users.
So one of the KEY thing which we are trying to gather is which payment predictor algorithms are rarely used on site and if there is any particular reason of not using those.

Thanks.