Glad due to faster cooldown on skills. Glad can also be quite the beast in PVE if you know what you're doing(pole baby pole).
only at end game.
40-76 glads and tyrants are equals. 77-80 really depends on support. 1v1 its still a toss-up.
the skill you really want to use as a glad costs MORE to cast (cost more stones more charges for the glad) , that being triple sonic slash. at high high level you can cycle it and your charges fast enough using duelist spirit. but not until then.
same with tyrants; low levels really suck for tyrants pvping. you got to be lucky with your blaster, or have some room to kite, or even have someone/thing to distract your opponent while you melee it to death. up at high levels both classes get a celestial shield type skill and it really helps.
Glad at 78+ otherwise Tyrant. Both classes pvp dmg is focused towards skill spamming and with interlude glads got a +50% skill refresh boost. Or at least I think 50% was the exact number.
With them being so similar what matters the most is who can skill spam the most, and Glad 78+ wins on that point. Skill crits can turn the tide or some lucky stuns but LionHeart = gah x.x
1/1 Equal skill, equipment and buffs both end up with no MP and the luck factor kicks in (unless one of then crited more skills than the other). That's it.
On sieges tyr/GK has the advantage in defence of rap ing enemy with a bow from the wall but only at the range of 600 (can't wait for longshot from sub in K+).
Glad skills respawn faster and it has one more melee skill than orc, but is slow as hell. He can dash but it's only 30 seconds.
also athough tyrants skills recharge a bit slower, their normal damage is still powerful whilste a glad has to rely on skills to do damage cause the regular hits are rather weak.