I am in a similar boat with my 11 ranger 4 fighter 1 barbarian character; unfortunately, 12 fighter 6 ranger 2 something else is far superior to 12 ranger 6 fighter 2 something else. The reason is kensai 1 and tempest 2 suck whereas tempest 1 and kensai 2 are pretty good. It is totally arbitrary why that is the case which is why I hope they at least beef up kensai 1 and tempest 2 (tempest 2 only need a little bit more really).