that's 1 way to go i think...
I personally would go for /nin and /war... there's some points that I prefer this way.
- as a THF, people expect me to be main puller. and while pulling that's the easiest part for THF to get attacked. if I have /war I can atleast throw in defender.
but the more efficient way IMO is use /nin and use the mirror image ninjutsu. with that ninjutsu I can avoid even magics such as bind. normally binb can be really deadly for THF when pulling a mage.
I even dodge Tornade tonight with mirror image ninjutsu... gotta love /nin
- I really love warrior's double attack... and I really like ninja's nitouryuu.
- I'm not really into DRK's ability so much since they are quite similar to WAR's berserk. but offer you less defending abilities....
just my choice

you don't need to like what i like. for THF it's pretty all acceptable.