Sig Lt 40
It is larger and easier to see than most trainers. It flys with less engine than most trainers. It is no more expensive than most trainers. It is very durable. It is less complicated to fly than most trainers. Its built to fly not built to indestructable in a crash.

Our local hobby shop sells any trainer interchangeably to the novice. They are experienced pilots and it is childs play for them to fly any of them....so they don't. Since they have not flown these planes their recommendation is given in ignorance. Some .40 recommended trainers could not be coaxed into the air with an OS .40 LA. Some trainers are hard to repair when damaged. Some come with hardware that is dangerous to use.

There may be better trainers, but the Sig LT .40 is the best I've seen for a prospective pilot.