Haha, I know, right?

It should not be hard though.

The BP 51 is specifically engineered for OZ-style, heavy trips and for higher lifts.

The Radflo can be set to deliver more performance in a variety of scenarios.

If you are going to be heavy with full steel bumpers and lots of luggage will you ever really use the Radflo's advantages?

So, BP-51 for overlanding and Radflo for more performance oriented offroading be it going at a decent speed through rough terrain or going over bigger rocks.

Radflo may be able to make you bypasses as well all for the price of the standard BP 51.

So that's the longer version of "being more involved with varied offroading" vs "set for overlanding and forget".

And then there is the issue of lift. I have seen 0 evidence for bigger lifts being useful in fact I am sure they make things worse: a bigger lift skews wheel travel and reduces vehicle stability in off camber situations. The Radflo can work with a variety of lifts but the BP 51 forces I believe a minimum of 2.5" which ruled it out for me right there.

A lot of people, including myself at an earlier time, obsess about clearance but in fact that is typically about suspension being too soft thereby reducing clearance when you need it and driver inexperience. The minimum static ground clearance that will clear the rocks of interest is the best. 1"-2" lift with good skids and suspension is enough for all normal difficult trails. Beyond that, it is play stuff and for that the 5 gen is a bad choice anyway.