My view is depends on where U use it most.
On highway, sealed roads, triton will be better as it has softer suspension.
Hilux is higher and higher centre of gravity(cog). On a highway situation and
cornering, u have to be careful.
I m using a Nissan frontier, powerful engine but bad leg space at the back seat,
hardly can get out of the back seat. But Navara has improves it quite a bit. havn't
test drive the Navara yet, but the spec is good. ha s an advance engine( 5 speed n 6 speed)
Hilux traditionally has good off-road capabilities, those ( old models) which have 4 leafs springs
are good for plantation works. but all these utilities nowadays need upgrade work on the
suspension before they are off-road capable. Otherwise prepare to get stucked!
So really depends on nature of roads U use to drive most (70%) of the time....

tested out the nevara , nice car and powerful but they give us leather seats and small flat bed . Abit unpractical , hard to maintain the leather if it was actually used as a workhorse car . Stained easily