If you're gonna buy a .45 Colt rifle, you may as well get the 1892 action for the strength to shoot the hot loads. I don't believe the Henry is able to do this, so I would go with the Winchester. Loading gate=WINNING.
Henry makes good rifles and I love the company, they made a .327 rifle and I'll forever be thankful for that.
I love the company, too. Made in the USA.
If the Henry can handle the pressures of the 44 Mag, 357 Mag, etc, then they can well handle any "hot" load of a 45 Colt.