I have played a gladiator/paladin since the games launch and do agree with the OP on all issues, they mirror sentiments that have constantly come to mind while playing Tank class in all the games content, have also played every ff title since 1.
If I may add a couple of ideas of my own they might be;
3D graphics capable?/a very rare stage of game where you design one weopon and have it submitted for review/and how about a fully diverse limit break capability ie,one for yourself,one for the party as well as an offensive-defensive option on that for every player as well as perhaps a combination option between party members to agree upon?