Hey Hi there!

In reply to fadi....Charlie P. has explained the best way possible of what is happening there.....Torque is more effective when you have to fly heavy planes; scale planes and generally when these planes have limitations of high speed stalls. Torque or "thrust " as you say gives stabillity to your flow over your control surfaces.Of course this is also counting on what kind of flight you are into. If you have a sleek pattern or a pylon racer of course you are in different type of flying and you ask for more speed so you move into bigger pitch.
Cheers
Johnnie

PS Credit goes to Charlie P. this time....al the way!!!!