617 is 3 oz lighter but could feel more muzzle heavy with it's medium K-frame and heavier 6 inch barrel. This GP .22 has a 5.5 inch barrel on a medium large frame. I liked my Security Six's balance and thinking this GP 22 would even be more balanced for my taste.
The Ruger original-style wood insert grip is my favorite of all Revolver grips. Hogue finger groove grips look stylish and pretty but get old fast when shooting double action on either Ruger or Smith and Wessons.
Trigger feel is a very personal quality preference. While I am ok with Ruger's trigger feel, there is nothing like a Smith.
I know a Ruger has the more durable trigger/hammer mechanism and I prefer the way it functions, i.e. indexing, lock, timing.
On double action, all my Smiths, past and present, all seem to be on the hairy edge between locking and the hammer falling. Sometimes I feel the hammer falling exactly as the cylinder locks. Whereas the Ruger lockwork is very defined and confident that the cylinder is indexed and locked before hammer falls.