What are you planning to do with 475?
Comparison with X-frames would be apples / orange type comparison.
For the amount of power the X-frames are friendlier in my opinion.
As mention double action compared to single action, individual preference.
I find single actions more difficult to shoot consistently as power goes up.
All these and other choices (480 Ruger, 500 JRH, 500 WYO and other Linebaugh cartridges) all capable hunting choices.
An interesting note is Jack Huntington is now building a 475 Special on S&W N frame.
As reference I currently have/shoot both X-frame calibers out of both Smiths, TC and BFR. Preference here is double action, single action then single shoot.
Also have a CP1 in 460 and find no fun at all to shoot.
Other single actions in 500JRH include BFR and Ruger.
No longer own 480 Ruger, 475 Linebaugh, 500 Linebaugh but have shoot them. Nothing wrong with these just can only shoot so many and chose 452 and .500 calibers to consolidate my reloading stock.
Get what you like
be safe
Ruggy