/GU Tanking summary for: Sakuragi --- Total damage: 99562 --- Avg hit: 
83 --- Swings: 2837 --- Defended: 368 (13%) --- Hit: 1186 (41.8%) --- Missed: 1283 (45.2%) --- Accuracy: 48% --- Dodged: 111 (4.3%) --- Parried: 162 (5.7%) --- Blocked: 0 (0%) --- Riposted: 95 (3.6%) --- Absorbed: 0 (0%)
/GU Tanking summary for: Lavarian --- Total damage: 21748 --- Avg hit: 
73 --- Swings: 604 --- Defended: 36 (6%) --- Hit: 296 (49%) --- Missed: 272 (45%) --- Accuracy: 52.1% --- Dodged: 15 (2.6%) --- Parried: 7 (1.2%) --- Blocked: 0 (0%) --- Riposted: 11 (1.8%) --- Absorbed: 3 (0.5%)
/GU Tanking summary for: Winajil --- Total damage: 6087 --- Avg hit: 
86 --- Swings: 112 --- Defended: 0 (0%) --- Hit: 70 (62.5%) --- Missed: 42 (37.5%) --- Accuracy: 62.5% --- Dodged: 0 (0%) --- Parried: 0 (0%) --- Blocked: 0 (0%) --- Riposted: 0 (0%) --- Absorbed: 0 (0%)
So basically from a mitigation standpoint a L60 bard does better than I do by 15%; in fact a L58 shaman is almost as good.  My warrior gets hit at exactly the same rate as well.  In fact from a per swing standpoint he takes almost exactly the same damage as a bard (worse mitigation vs higher dodge/riposte/etc), so the only difference is higher hp.  I'm also surprised that he was missed at exactly the same rate: I would think the iksar bonus (supposedly to avoidance) and higher defensive skills would be at work here as well.
edit: Also I just looked at Lavarian's wiki page and it shows about 153AC of gear.  I'm guessing that he wasn't wearing his resist gear; if not we could give him another +20 for 173, which would put him about the same as Sakuragi.  But its not like he had some huge mitigation bonus.
Again, these kind of parses just don't add up.  The steel warrior ubermob tanking guide 
http://www.thesteelwarrior.org/forum...hread.php?t=13 suggests that 100AC should be good for a 3-4% damage reduction against a high-level dragon; I would think it would be more against something like the cliff golem.