I only had a little bit of seat time in the .1 3RS but my impression was it was very hard to distinguish a difference in ride quality, both felt a bit stiff but definitely manageable on your typical uneven/bumpy street for me. Supposedly the .1 3RS is quite comfortable for DD/street driving especially compared to the new .2 3RS so I wanted to point that out for the OP from just my own experience, others will be more knowledgeable about ride quality between the two for sure.

I have a strong feeling that the .2 GT3 won't depreciate into the future because its likely the last NA + manual transmission 911 GT car Porsche will create (unless they've given a clear indication that the next GT3 won't be turbocharged).

People who have 991.1 RS will say RS; people who have 2GT3 will say that's the one to get. Drive each and decide. I've had both, GT3 better around town. RS better for track. Just my opinion of course. Good luck, both are awesome.

Interesting take and I'm sure the OP will appreciate your personal experience. The general consensus that I've taken away from folks who have driven both was that the 991.1 GT3RS has a harsher ride quality than the 991.1 GT3 and that the 991.2 GT3 has a more compliant ride than the 991.1 GT3. This would suggest that the 991.2 GT3 is much more compliant than the 991.1 GT3RS. Eitherway, the OP should be fine with either.

2016 GT3RS Nurburgring lap time 7:20 per Car and Driver (Mar 2015)
2018 GT3 lap time 7:12.7 per Porsche.
Seems pretty clear to me...
Please obfuscate as needed.

REALLY????
Not according to Nurburgring Lap Times: 2018 GT3-2 7:12.70, 2016 GT3RS-1 7:20.00

The RS may have better grip and aero, but the .2 GT3 has better torque and power to get it out of corners. In a controlled environment they would be equally as fast. .2 GT3 has the advantage of more torque, a better torque curve and power. The .1 RS has more mechanical grip. I have no driven both, but friends that have owned both and they all say the .2 GT3 is faster and they feel more comfortable with it around a track.

In my experience at track the new GT3s pull away from me easily out of corners down the straights, but I easily catch them under braking and through corners. No doubt that new car has better low end torque. I personally think the RS feels better on track, but that just me. People who quote Ring times to determine what is a better car is ludicrous. I would never say that the new GT3 RS is a greater car then a 918 because its now faster. So many variables at play (tire differences, ambient temp, track changes/paving, ect ect) . However, I guess some people are into measuring their dongs for superiority to make them feel better.

In all fairness, quoting Ring times is generally acceptable for assessing overall track prowess not for "determining which is a better car". While you are right that there are variables that do affect Ring times across different periods, Ring times are generally acceptable comps as a measure of a car's track worthiness. Measuring one's dong is another thing altogether... btw your assessment of the GT3RS outperforming newer GT3s under braking and in the corners makes sense..I mean look at Front & Rear tire size for starters...way more rubber on the RS!!

I also support this view of slow depreciation and because the 991.2 GT3 is only being made as a one year model version and either PDK or manual version will hold as well as the other, if that is the case. If the 992 GT3 regular goes turbo that will even flatten out the depreciation curve even more..........interesting speculation..............

I have a .2gt3 coming at MSRP but if I had to pay a 20-50 over I would be shopping for a used RS. The performance is so similar and most likely you won't come close to using it all. Now if a manual is important then...

That's it right there. ^

If actual sales prices of both cars had a delta of tens of thousands of dollars in difference, it would be an easy choice; say an RS at $200ish or .2 at $160ish. But they are from what is on the market - content for content - about the same price.

The RS is easy to purchase - tons available, the .2 purchase is wrought with perceived "pain"; deposit, time value of money, partnering with a dealer or third party, long wait times, etc... . If you want an RS today, you can get an RS today. If you want a .2, it gets complicated.

And the other argument that these cars will hold their value is speculation. Neither have unit counts that traditionally would dictate exclusivity, and non exclusive Porsches don't really appreciate - with the exception of those individual cars kept in showroom quality, which is another discussion of opinion. It might be better to look at the current snapshot rather than trying to guess considering potential market permutations.

del