Late to the party as usual.
I've owned a Marlin 782 22 WMRF since the mid 70's, and back in Spring 2004, I added a 17 HMRF rifle to the stable.
Couldn't get My hands on a Marlin in that caliber, so I opted for a bull barreled, wood stocked Savage 93RGV17 rifle.
The 17 HMRF shoots much flatter out to 150 yards, and as long as the wind is very light, the 17 is the superior varmint cartridge.
Windy conditions, forget about the 17 magnum and pick up the 22 magnum.
The 22 magnum ammunition is less expensive as well.
If I could only own one of the two calibers, I'd prolly opt for the old standby.....22 WMRF.