I like Nor V Gen boot grease in the flat can and Snow Seal, both waterproof nicely and the leather keeps it's shape. I do use Hubert's also on moccasin, softens the leather alot but does a fair job of waterproofing.
If I get a pair of stiff leather gloves the Hubert's softens them nicely if the gloves are soft I use Nor V Gen as leaves a tacky finnish.
AWS