Having used both on quite a few hogs, the .44 always out of a pistol, I would go with the .35 Rem.
That said it comes down to how short a rifle you can find either one in. The .35 Rem I use is a OLD Glenfield model that has a half lenght magazine tube. I cut the barrel down to 19 inches, shortened the stock and mounted a Aimpoint Micro in a Scout mount on it. It is short and fast in the plamettos and swamps.