I might point out for those who state that a higher probability of landing a glancing blow against heavy plate might cripple 1h sword users, or otherwise nerf their effectiveness: you are using a sword. Those do cut damage, save for the heartily nerfed thrust, and against a heavily armored opponent it only makes sense that they would glance more.
Now, were 1hers to only have access to swords, I might agree that it would be unfair to make armor once again more glance-tastic. However, 1h users have access to a wide variety of weapons, and whats more, those weapons only take up one slot each. I might suggest that in the event armor reverts to its (in my opinion better, given the recently increased monetary risk of using plate) glancey state, many 1h users may carry multiple weapons. A sword and a pierce or blunt weapon.
Now, I understand that many use 1h swords as secondary weapons, their primary being xbows or bows. I should point out that these people... have xbows or bows.
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Regarding this armor stuff... it will not be reverted, no matter how loudly the whine is.
Despite this, I shall bitch anyway. I personally think that, given the expense of armor, and its fucking coolness, it should make its wearer better able to shrug off the majority (ie, cutting) of attacks. I understand that strength builds are rather... strong in this game, however that issue is a stat based one, and should not be permenantly addressed by altering the items.
Now, I think I should remind everyone that this shit is almost entirely limited to battles and siege servers. I am sure that the developers aim to make the heart and soul of cRPG Strategus, and in Strategus the "plate problem" is practically a non issue. My limited experience suggests that plate is rarely seen in a strat battle, and that this will remain to be the case. The only time I've seen plate is when a clan had a few suits set aside for their most epic players (recently it was Goretooth in an ATS battle, so awesome). I might be wrong about literally everything I just said, though.