In my opinion, there is no single "correct" answer to this question.
A two bedroom in RCI high season is 270 points. Whether or not that is an equitable trade is a function of (a) the time of year the DVC member is looking to trade into, (b) the particular RCI property they would be going into and (c) the comparable cost of points for a two bedroom at their preferred DVC resort at the same time of year. All of those vary and the "RCI quality" element in particular appears to be highly subjective (what I think is a great resort you may not and vice versa).
The idea of renting points as previously observed has the upside of allowing the use of the income to stay at properties outside the DVC/RCI trade universe. The downside from my experience (in doing many "pro-forma" calculations on this) is the fact the "street booking" cost of the the top shelf resorts we're interested in is often far more than the value of the 270 points cited earlier. Ergo, I have found targeted, careful trading to offer more value (in terms of oustide resort "quality-bang-per-point) than renting.
Put differently, the 270 point cost I've found for prime times at some "Disney-comparable" II and RCI properties is less than the points required to stay at DVC properties during the same time of year. But again, that's based on my subjective view of resort quality (what I'm defining as "top shelf" may be different than what others do). You will find plenty of DIS members offering opinions on what comparable trades are, but they are qualitative in nature (there's no chart anywhere that uses objective "metrics" to assess which RCI properties are up to "DVC standards.")
