I have a RAT-5 and an RD-9, and a RAT-7 on the way. For me, a 7" blade still needs to me more of a knife, and less of a chopper, so the 3/16" blade of the RAT was preferable to the 1/4" of a Ranger. The RAT-5 batons well and chops "okay" for the length, so the 7" can only do better.
The Ranger handle feels short, even though my hands are average size. The RAT handles are longer, and in holding the knife for typical "knife" tasks, they're more versatile for me. The micarta scales on the Ranger are nicely rounded around the circumference, but sharp at either end. The RAT scales are boxier, but allow for more end-user customization. Both need to be sanded to fit before extended use, IMO.
The 1095 RAT showed very little "character" on the edge after working with dirty wood, but the 5160 Ranger was used abusively on the same material and showed no dings or rolling on the edge at all. I don't know whether that's a function of the steel type or the edge bevel (I convexed the Ranger), but the RD-9 really took a beating, and just shrugged it off.
The Ranger sheath was a
disgraceful outrage!!! Well, maybe not that bad,

but the liner came out with the knife the first time I took it out, and then cracked when it came flying off the blade and hit the floor. And the retention strap does nothing to prevent the knife from slipping out of the sheath. I had to make a new liner from kydex sheet, and a new snap-strap from an old dog collar, sewn on with dental floss. I spent more time reworking the sheath than I did convexing the edge...
Anyway, thinner blade stock and larger handles are the main reasons I went with the RAT for a 7" knife, and the blade thickness I could probably go either way on.