Another good question, Duckdog.
Back in the late 70's, I got my first 17 Remington, it was a Harrington and Richardson that used the cute Sako L461 action. Mind you, this was when a lot of folks had never even seen a 17 caliber gun. Anyway, I soon discovered what a cool little gun it was. But, I lived in Houston back in those days and because I did not have a place to shoot it other than the gun range, I sold it. I kept the dies and brass and several years later (and three moves)bought me another, this time a CZ 527. Got to love those set triggers. Now then, the 17 Mach IV was already around as a wildcat by the time Remington finally made their first 17 cal rifle, but they wanted to gee whiz the buying public with that 4100 fps so they used a bigger case to get the velocities that they thought that they would need to sell this little round. It worked too- for a while. It almost went bye bye after a few years, but sales were always good enough to keep it in production, but just barely.
I think that if Remington had made a little .172 bullet in 20 grain back then they still could have had their magical 4 grand speed, and used the nifty Mach IV instead. There are a crap load more powders avail now than there were over 35 years ago, so maybe not.
If I was starting today brand new? I will make no bones about it, it would be the 17 Remington. Mine have all been so finely accurate, with each next one better than the last. The fact that it has been around for all of those 36- 37 years dont hurt a thing either. Like I said earlier, the 17 Rem can be loaded down- and it does so very well even. On my last prairie dog outing I was punching pooches way out past 300 yards with mine. One was at 400 yards. And this was with the 20 grain bullet loaded down to aprox 4000 fps. Mine fouls no worse and cleans just as easy as my 223 or 204 or 220 Swift rifles. Need a special cleaning rod, but got mine at Cabela's. You can get them everywhere now, but DO get the one piece, OK?
And durn, I went on long, but I was trying to make a point here I guess. I know what the first born 17 will do. I expect his little brother will do just fine as well. I hope so even. It's just that he has some might big shoes to fill, even if they fit on tiny itty bitty feet.