I like them both, but I have to give a nod to the Hi-power. (Walkalong isn't surprised by this.) There is very little wrong with the gun that can't be easily fixed.
1. Mag Disconnect? Even the least mechanical person can remove this.
2. Hammer Bite? Gotta File? Fixed.
3. Trigger? Mag disconnect will help with that, and a little polishing will go a long way. A truly great trigger requires a visit to a good smith.
These are tough guns. I do wish an American company would pick up the Hi-power, and commit to a new MkIV version....no mag disconnect, no-bite hammer, and a mechanically better trigger design from the get go.
FWIW: I recall the first Browning Prototype was striker fired with a 15-16rd double stack mag.