Very nice summary! I am whittling it down:
RTR
Element Trailrunner - IFS is intriguing, also overdrive.
Traxxas TRX-4 Bronco - I love the body style
Axial SCX10 III JL Wrangler - A fan of the body style and DIG
Redcat Gen8 Axe - Unsure about Redcat, seems like a budget company except for this
Kits
Traxxas TRX-4 Sport Kit (chassis and wheels) - Probably the most logical kit choce for me
Axial SCX10 III JL Wrangler Kit (chassis and wheels) - May be too complex for a first build
Traxxas TRX-4 Chassis Kit (everything but body) - Basically a Bronco minus the shell
I am new just got back into RC. Previously the last one I built was a tamiya frog in the '80s as a teenager.
I would definitely recommend a kit because that is where a lot of the fun is for me. Also as you drive things will break or you will see what you want to upgrade or change and you will be more familiar.
So far I have built a RC4WD TF2 an SCX10.III and I have a SCX10.II on the way. I didn't have a budget but I did try to get inexpensive good thing instead of cheap things or the best things. Don't forget you will need other stuff like tools, paint, charger, battery, controller. Some RTR have that but seems the consensus is that is mostly junk. Going KIT you get to pick some better stuff.
Here are some things I found that I think are great deals and can be used with multiple vehicles:
ESC Hobbywing 1080 $42
CrawlMaster Sport 540 13t 1850kv $15
20kg servo for steering $16
Flysky FS-GT5 $80
T150 Touch screen lipo charger $70
Gens ace 11.1V 2200mAh 3S 25C LiPo Battery Pack with XT60 Plug $23
Lipo fireproof bag $13
Unless you have some of that stuff (also paint/tools) or you are excluding it from your budget then you only have about $200 for a kit (including tires and body).
So far I have learned that I currently prefer performance over scale. Like the much better turning radius of scx vs tf2 and how much easier tf2 breaks. I enjoyed the build of scx10.3 more because of building the transmission, axels, diff. Stock tires on the scx are also much better for crawling.
I also realized I don't care about dig or changing gears. I thought I would be into that and maybe I will later on but right now I just want one gear tuned by the pinion size and I don't care about portals and would rather have low center of gravity and less weight. That is why I am building a lighter lower scx10.2. I was going to get the ssd trail king version of the chassis (better stuff at good value) but for me there is fun in upgrading slowly and seeing what breaks and worth the $ for that experience. Also with 3 vehicles I can swap out stuff between them.