Speaking just for myself, if there was an article on the (4,2) leaper, I'd probably go with both Hare and Stag.
As for the Antelope (as a (4,3) leaper), the diagram tells me that it's not likely to be much use on a standard-sized board; there's no place it can go where all of its destination squares are available. For something 12x12 and up, though, it can be at least as handy as a Knight in standard chess, and in some cases almost scary.
The Impala, which moves like a Knight or Antelope, could also be a wildcard in a game.
Speaking just for myself, if there was an article on the (4,2) leaper, I'd probably go with both Hare and Stag.
As for the Antelope (as a (4,3) leaper), the diagram tells me that it's not likely to be much use on a standard-sized board; there's no place it can go where all of its destination squares are available. For something 12x12 and up, though, it can be at least as handy as a Knight in standard chess, and in some cases almost scary.
The Impala, which moves like a Knight or Antelope, could also be a wildcard in a game.