RE: Best
The Parkzone T-28 is realatively small compared to your typical RC airplane and it does not crash any easier than any other plane of its type. It is just more advanced than a trainer airplane and requires a little more flying skill. While the Parkzone T-28 is fairly tame, it isn't a basic training aircraft like the full size plane it was modeled after.
I would go for the Super Cub. It is a good, basic, electric trainer form a good manufacturer with available spare parts, etc. Once you have mastered that, then revisit the T-28 and you'll have a blast.