I have a set of Rocky Talkies. I also have a set of Baofeng UV82 HP which, due to their high wattage, programmable frequencies and removable antenna, are illegal to use without a HAMM license.
I often use the Baofeng's for backcountry skiing as I have the various SAR channels and area repeaters programmed in. Obviously, I don't use them and would not use them unless their were an emergency. I do also have the standard FRS channels programmed so I can communicate with Rocky Talkies, Motorolas, BCA links etc. Even in high watt mode, you don't gain much of any advantage in mountainous terrain over your standard FRS radios. I can broadcast further if there is a line of sight, but if I'm, say, 800 vertical feet down a 35 degree slope from my partner (can't see each other), then there is no communication. That's the downside to radios in the mountains. From the summit of a peak, I could probably communicate directly with someone on a summit 40 miles away, but that doesn't gain much practical benefit for communicating with your group.
So, all things being equal, any brand name FRS radio you buy will be the same programmed wattage:
Channels 1-7 and 15-22: Allowed to transmit up to 2 watts.
Channels 8-14: Limited to 0.5 watts.
With that in mind, the Rocky Talkies are pretty practical in that they are fairly bombproof, but that is the only feature you are gaining over the major competition. They do have input/output jacks for a speaker/mic, so you could use a headset with them. They are programmed with a squelch so you do get an unavoidable squelch with each broadcast, which is a little loud for actually stalking without a headset. You can't program legal FRS radios so no way to remove that.
The BCA links do have a nice feature where you can change the channel on the speaker/mic so you can have the radio in your pack and not need to access it to change channels, but they are kind of ridiculous pricey at ~$200 per unit.