URC and RTI are out of the comparison. For me they are just an universal remote.

AMX and crestron could be compared.

Now, who's 40 years in the market, makes OEM lighting control, HVAC, shades, speakers, amps, receivers, cameras, door locks, i could be here for hours...

Answer is crestron. They make everything you need- seamless integration, no need for 3rd parties.

Whoever says that crestron is not realible, does not know how to design it or program it. A real crestron system well programmed will work forever.

Savant i dont know much, but seems to me that is expensive, super complicated to program if you're doing stuff different from the drag and drop, and it relies on other companies for lighting, hvac, etc etc. The chance of glitches are much higher.