I find the Sportivo to be better looking and bigger, but driving comfort is really not there. Sa speed, medyo mas mabilis ng onti ang Adventure. I also find the Isuzu engine much reliable.
However, riding and driving comfort, mas maganda ang advie.
I never really like the adventure the seating position is awkward and the diesel adventure(manual) is like driving a gas fed car that you have to step on the gas and clutch for the car to move compared to the Innova manual where in you could just lift your left foot gently off the clutch w/o steeping on the accelerator. The Adventure also has poor legroom and space in the 2nd row seat. I don't think the adventure is fast neither the crosswind. The crosswind has a better driving position and the steering feel is not light at highspeed but the problem is it is so darn bouncy even with 5 people on board.
My Automatic 2003 Crosswind still gets 12km/l in the city same as my 2007 Toyota Innova =)