As with most things in life this is all a matter of preference. The high-wing Cessnas are very popular trainers & I'm in no position to argue. They're reliable, easy to fly & economical to operate. It really depends on what you wish to do.
Most, if not all, military services throughout the world have been using low-wing types for ab initio (basic) training for many years. Until very recently (& despite the fact that the Army operated no other fixed wing types) all British Army Air Corps pilots did their basic training on the DHC-1 Chipmunk before transferring to helos.
PS. This is the Chipmunk, one of the finest basic trainers ever built. IMHO
