thief was seriously nice for melee solo before, with the introduction of dancer, things changed
i rank nin/dnc first, because of higher dmg, higher subtle blow, and with the right gear, shadows are not prob to keep up and wont be much behind because of the evasion boost from /dnc, then dnc/nin for variety of tools to use which help in survival which counters the low dmg output, last is thf/nin which is loosing ground as melee soloer, guess sam/dnc is trying to be a competitor now too :P
..... rdm is the king always, dont compare rdm with thf please:P
thief can still be fine, but as a duo job not as solo these days, many NMs you need thf and any job that can heal and you are fine, i got 50 evasion and 305-309 evasion skill if i can use master caster now, but that wont help vs attacks that go through shadow + bloody bolts absorbing less than 30 hp per bolt vs some mobs, or cant absorb at all vs others ;_;
if its gonna be thf+mage, or its possible to do the fight as thf/nin+thf/dnc then the thf shouldnt have prob with hate because of collaborator or TA if duoing with another thf
just one thing, the dmg diff btw nin and dnc can be reduced by using the ability that reduce dmg taken by 90% and decreasing to lose some hp if the mob doesnt have a ws that go through shadows to absorb more hp through drain samba to end up with more dmg output, joytoy helps big time using that strategy, if the NM has a move that go through shadows, no need for that i guess
:P