I can see the point of the Gladius (no pun intended) and it's a very fine weapon.
Personally I like a standard broadsword of the medieval period, and it's been proven it is pretty effective. I forget the name of the guy here in the UK who is often asked for expert opinion on weapons (sure his title is 'Weaponsmaster' or something but certainly knows his stuff!). Have been looking on You Tube for examples of his programmes, but without knowing his name I'm stuck!
I'm sure I remember he did comparisons on a mail coated 'torso' with a broadsword, a bastard sword, a falchion, and a two handed sword all from within 100 years or so of each other. Pretty sure the falchion was the most brutal, but I just like broadswords for the point as well as the slashing ability.
Alternatively, one of the British heavy cavalry swords of the 1790's-1800's. Only draw back with the latter is you suddenly only have one cutting edge. Yeah I have read the Sharpe books...
Still I'd rather go down that aisle that a sabre, falcata, scimitar or tulwar.
I guess it really depends on personal choice, the wielder of the weapon and the situation they are in.