Erm, under normal circumstances the Tanking tank will never get Landslided unless some one was standing where you were and in that case they are likely to get hit by Rock Buster afterwards. DF in Japan the tanks always check each other out, then decide, no fuss no drama only kills. Thus far Titan on DF with Japanese is at around 70-80% clear rate.

I queue as Paladin and Warrior alternately and sometimes, a weaker tank comes in and wants to MT most of the folks won't go against it, since I can DPS and when he does drop I can pick it up.

Hence if you want to play with a more mature crowd, go with the Japanese, but just make sure you are at least "fit" for the role... Don't go coming in trying to tank with full AF1 gear and GC 44s.