I own a late model 4" 629 and a 4.2" Redhawk, both in 44 Mag. I like them both. I actually find the trigger in my Redhawk to be very nice, as good as on the 629 from the factory (though they have a different feel to them in terms of 'stacking'). On the older Smiths the triggers may be far superior, but as for the newer guns - I don't see it. And I don't know how the triggers might have been on older Redhawks; I just know I was surprised when I first tried my gun.
As I said, I like them both. If I'm in country where the biggest critter around is a black bear, I'll carry the 629. If in country where there are griz, I carry the Redhawk. The Redhawk can take hotter loads than the 629. Just look up any handloading manual and you'll see loads that are only appropriate in guns of a class which include the Redhawk. The price you pay for this is more bulk and weight. But when comparing the (roughly) 4" barrel guns, its not too bad of a penalty.
Carrying them in a good holster and with a good belt makes a world of difference in how they feel on the hip at the end of the day.