Both are decent deals but I think the .44 is a better deal.
I don't own a .44 ... only have a .41 which I love by the way. I shoot it ok. The .44 gives you the option of shooting the hot stuff in the field and the lighter stuff (speacials) at the range. Anyway, the .44 gives you a little more distance but both will take whitetail. I have not yet hunted my .41, so I do not speak from experience but rather from the information I gained in my information quest before I purchased. I talked to a bunch of guys who had owned both the .41 and the .44, and chose the .41 after a few trips to the range.
If both guns are in good condition they are each a decent deal, but most here wil probably point towards the .44