Can't have Janeway in a deathmatch - she's not physical enough. If we are talking only of the females, needs to be Seven or Belanna.
We've seen Janeway get physical (heh) multiple times, and she's always kicked arse and taken names.
is right, I think, about her.
Janeway has been a commander and now Captain, Beverly is a doctor. Just going by "Memorial" and Janeway was involved the same Cardassian wars as Miles O'Brian (Remember her story to Seven in "Prey"?), Janeway is used to being in combat situations and having to defend herself. Bev. isn't.
Taking hand to hand combat simulations isn't the same as being in real combat.